Search: “2fa-bypass”

CVE-2026-86462: Apache Airflow FAB provider: FAB Admin password PATCH does not invalidate database-backed sessions

Apache Airflow FAB provider 3.2.0-3.8.x password changes do not invalidate database-backed sessions, letting stolen session cookies survive a password reset.

CVE-2026-86462 affects apache-airflow-providers-fab versions 3.2.0 before 3.9.0. Changing a user's password via the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie retains full access as that user after the password change. Severity is rated moderate.

oss-security·Sep 15, 19:59 UTC · 23h agoVulnerability 3 sourcesCVE-2026-86462

Package Manager Trends

Sixteen-week roundup finds package managers converging on release-age cooldowns, install-script blocking, malware scans, and recurring path-traversal and credential-leak fixes.

The author aggregates supply-chain security trends from sixteen weeks of This Week in Package Management, built from about 80 RSS feeds. Release-age cooldown gates shipped in Deno 2.8, Bundler, npm, Yarn, mise, Hex, Mamba, and Cargo, with Dependabot making a three-day cooldown default in August. npm 12 and Bun 1.4 now block lifecycle install scripts by default, and Composer 2.10 and uv added install/publish-time malware checks, while npm's registry began scanning at publish time. Path traversal on archive extraction was fixed in 14 of 16 weeks across tools including uv, pnpm, Docker, and Composer, and credential-misdirection bugs affected Cargo, ORAS, Composer, and Renovate.

Lobsters · security·Sep 10, 12:30 UTC · 6d agoResearch1

[20260807] - Core - MFA Authentication Bypass

Joomla fixed CVE-2026-73337, an MFA authentication bypass caused by insufficient state checks, affecting Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2.

Joomla security advisory 20260807 describes CVE-2026-73337, an authentication bypass in Joomla CMS multi-factor authentication. Insufficient state checks create a vector that allows 2FA checks to be bypassed; the vendor rates the impact as high with moderate probability. Affected versions are 4.0.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by bloman and Matej Rada on 2026-07-25.

Joomla Security Centre·Aug 17, 14:00 UTC · Aug 17, 2026AdvisoryCVE-2026-73337

CVE-2026-86206, CVE-2026-86207: N-able N-central Authentication Bypass (FIXED)

Rapid7 disclosed two chained N-able N-central flaws, CVE-2026-86206 and CVE-2026-86207, enabling unauthenticated admin account creation; patched in 2026.3 Hotfix 3.

Rapid7 researchers found CVE-2026-86206 (semicolon/Forwarded access-control bypass, CWE-791, CVSSv4 6.9) and CVE-2026-86207 (UserTwoFactorLogin authentication bypass, CWE-305, CVSSv4 7.7) in the latest N-able N-central. Chained, they let a remote unauthenticated attacker create an attacker-controlled System administrator account. The bugs stem from Envoy and Jetty disagreeing on the requested path and whether the client is local. N-able patched both in N-central 2026.3 Hotfix 3, following the earlier CVE-2026-18577 authentication bypass.

Rapid7 Blog·Sep 8, 11:01 UTC · 8d agoVulnerabilityCVE-2026-86206CVE-2026-86207CVE-2026-18577

CVE-2026-86465: Apache Airflow Akeyless provider: Akeyless secrets backend: team-scope guard bypass via user-controlled key

Apache Airflow Akeyless provider before 0.3.1 lets DAG authors bypass team-scope guards and read other teams' secrets.

CVE-2026-86465 (moderate) affects apache-airflow-providers-akeyless before 0.3.1. The Akeyless secrets backend's team-scope guard can be bypassed with a user-controlled key: in multi-team deployments, a DAG author scoped to one team can supply a Variable key containing a path separator that resolves a secret belonging to another team.

oss-security·Sep 15, 20:03 UTC · 23h agoVulnerabilityCVE-2026-86465

U.S. CISA adds PaperCut NG/MF flaws to its Known Exploited Vulnerabilities catalog

CISA added two actively exploited PaperCut NG/MF pre-auth flaws to the KEV catalog; federal agencies must patch by September 14.

CISA added CVE-2026-81578 (CVSS 8.8, missing authentication for critical function) and CVE-2026-82078 (CVSS 9.4, unsafe reflection) in PaperCut NG/MF to its Known Exploited Vulnerabilities catalog. Huntress confirmed active pre-authentication RCE exploitation in two customer environments and reproduced the full chain against a clean PaperCut NG 25.0.11 server, chaining the auth bypass into unsafe Java class loading for SYSTEM-level execution. About 47% of roughly 2,500 tracked PaperCut installs still run version 23 or earlier with no patch available, and observed attacker activity was limited to system discovery commands.

Security Affairs·Sep 1, 08:13 UTC · 15d agoVulnerability in the wildCVE-2026-81578CVE-2026-82078

Off Guard: Breaking LiteLLM from authentication bypass to cloud compromise

Wiz found LiteLLM auth bypass (CVE-2026-59822) and post-auth RCE (CVE-2026-59821) chainable to cloud compromise; the bypass is in CISA KEV with in-the-wild exploitation.

Wiz scanned roughly 3,074 internet-facing LiteLLM deployments and found 9.6% accepted the default master key sk-1234 or required no authentication, making post-auth attacks effectively pre-auth. The MCP endpoint accepts any Bearer token and grants a valid session (CVE-2026-59822), confirmed exploited in the wild via honeypots and added to CISA's Known Exploited Vulnerabilities catalog. Custom code guardrails allow post-auth root-level RCE via exec(compile(...)) (CVE-2026-59821), while pass-through endpoints lack URL validation, enabling cloud credential theft in post-auth scenarios. All assigned vulnerabilities have been patched; the research was presented at DEF CON 34.

Wiz Blog·Sep 9, 16:06 UTC · 7d agoExploit / PoC in the wildCVE-2026-59822CVE-2026-598211

Attackers plant remote access tools on compromised PaperCut servers

Attackers chained two PaperCut NG/MF zero-days for unauthenticated access, installing SimpleHelp and AnyDesk remote access tools on compromised servers.

An ongoing campaign exploits chained zero-days CVE-2026-81578 (improper access control) and CVE-2026-82078 (unsafe dynamic class loading) in internet-facing PaperCut NG and MF Application Servers, enabling authentication bypass and arbitrary Java bytecode execution. Post-compromise activity includes user and domain enumeration, payload download from sendit.sh, and silent installation of SimpleHelp and AnyDesk for redundant remote access; Defused observed CVE-2026-81578/CVE-2026-82078 exploit activity in honeypots since August 29, including data theft via Derby database dumps. Emergency patches were released August 28 and August 30, but 47% of roughly 2,500 PaperCut installs tracked by Huntress run v23 or older, for which no patch is available.

Help Net Security·Sep 2, 08:12 UTC · 14d agoExploit / PoC in the wildCVE-2026-81578CVE-2026-820781

[webapps] miniOrange 5.4.3 - Unauthenticated Auth Bypass

A proof-of-concept exploit for an unauthenticated authentication bypass in miniOrange 5.4.3 has been published on Exploit-DB.

Exploit-DB lists a public proof-of-concept exploit for an unauthenticated authentication bypass in miniOrange 5.4.3. The flaw allows attackers to bypass authentication without credentials. No in-the-wild exploitation or CVE identifier is stated in the listing.

Exploit-DB·Sep 1, 00:00 UTC · 15d agoExploit / PoC

SonicWall SMA 1000 appliances under attack via zero-day flaws

SonicWall confirms active exploitation of zero-day SSRF (CVE-2026-83548) and command injection (CVE-2026-83549) flaws in SMA 1000 remote access appliances.

SonicWall confirmed attackers are actively exploiting two previously undisclosed vulnerabilities in SMA 1000 SSL VPN appliances, affecting physical and virtual models 6210, 7210, and 8200v but not SMA 100 appliances or SonicWall firewalls. CVE-2026-83548 is a pre-authentication SSRF in the Appliance Work Place interface allowing remote unauthenticated attackers to gain unauthorized access to sensitive functionality, while CVE-2026-83549 is an OS command injection in the Appliance Management Console that can yield remote code execution under specific conditions for authenticated admins. The vendor urged immediate hotfix deployment, IoC review with technical support, and re-imaging or redeployment plus password and TOTP token resets on confirmed compromise. This is the latest in a series of zero-day attacks against SMA 1000 appliances following waves in late 2025 and June-July 2026.

Help Net Security·Sep 2, 00:00 UTC · 14d agoExploit / PoC in the wildCVE-2026-83548CVE-2026-83549

LiteLLM Flaws Let Attackers Execute Code as Root and Steal Cloud Credentials

Wiz disclosed LiteLLM flaws including CVE-2026-59822 MCP auth bypass, now in CISA KEV, enabling root RCE and AWS credential theft from exposed gateways.

Wiz researchers disclosed weaknesses in the open-source LiteLLM AI gateway: CVE-2026-59821 allows authenticated administrators to execute code as root via the Custom Code Guardrails feature, while CVE-2026-59822 is an MCP authentication bypass where a meaningless Bearer token establishes a valid session. The MCP bypass was observed in the wild through Wiz honeypots and added to CISA's Known Exploited Vulnerabilities catalog on September 2. A scan of 3,074 internet-facing instances found 294 (9.6%) accepting the default master key sk-1234 or lacking authentication. Fixes shipped in LiteLLM 1.82.0 (guardrail hardening) and 1.84.0 (MCP bypass); exposed instances can leak provider API keys and temporary AWS IAM credentials via the pass-through feature and metadata service, with a related config-check issue tracked as CVE-2026-35029.

Cyber Security News·updated Sep 10, 12:56 UTC · 6d ago·first Sep 10, 12:26 UTC · 6d agoExploit / PoC in the wild 3 sourcesCVE-2026-59821CVE-2026-59822CVE-2026-35029

Three Critical VMware Flaws Allow Auth Bypass, Code Execution, and VM Escape

Broadcom patches three critical VMware flaws, including vCenter auth bypass CVE-2026-59309 and an ESX VM escape, urging immediate updates.

Broadcom issued emergency updates for VMware ESX, vCenter, Workstation and Fusion, fixing five flaws including CVE-2026-59309 (CVSS 9.8 authentication bypass in vCenter) and CVE-2026-59310 (CVSS 9.8 directory traversal allowing code execution). CVE-2026-47876 (CVSS 9.3) is an out-of-bounds write in the ESX VMXNET3 adapter that permits a virtual machine escape to the host. Broadcom found no evidence of exploitation, but Defused Cyber reported a spike in vCenter scanning on August 11, 2026 consistent with exploitation attempts against CVE-2026-59309 (VMSA-2026-0006). No workarounds are available.

The Hacker News·Aug 11, 15:42 UTC · Aug 11, 2026VulnerabilityCVE-2026-59309CVE-2026-59310CVE-2026-47876+2 CVEs1

Attackers Pounce on Critical Artifactory Bug Following Disclosure

Attackers began exploiting CVE-2026-82329, a critical authentication bypass in JFrog Artifactory, shortly after disclosure, gaining admin-level access on affected systems.

CVE-2026-82329 is a critical authentication bypass in JFrog's Artifactory repository manager that enables attackers to gain admin-level access on affected systems. Exploitation started soon after the flaw's disclosure. Artifactory is widely used to manage software artifacts, making compromised instances a software supply chain risk.

Dark Reading·Sep 1, 21:05 UTC · 14d agoExploit / PoC in the wild 2 sourcesCVE-2026-82329

SonicWall's SMA1000 boxes under active attack again

SonicWall warns attackers are chaining two SMA1000 zero-days, a CVSS 10.0 SSRF and command injection, to compromise VPN gateways.

SonicWall says attackers are actively exploiting two chained zero-days in SMA 1000 appliances: CVE-2026-83548, a pre-authentication SSRF rated CVSS 10.0, and CVE-2026-83549, a post-authentication OS command injection (CVSS 7.8) in the Appliance Management Console. Hotfixes are available for SMA 6210, 7210, and 8200v appliances with no workarounds; SonicWall recommends reimaging compromised devices, rotating passwords, and resetting TOTP tokens. NHS England assesses further exploitation as almost certain, following a similar exploited pair in July when CISA added CVE-2026-15409 to its KEV catalog.

The Register · Security·Sep 2, 16:05 UTC · 14d agoExploit / PoC in the wildCVE-2026-83548CVE-2026-83549CVE-2026-15409

Attackers Exploit PaperCut Flaws to Steal Credentials From Schools and Universities

Attackers exploit newly disclosed PaperCut auth bypass CVE-2026-81578 and RCE CVE-2026-82078 to steal credentials from schools and universities in the US and Europe.

Arctic Wolf observed threat actors chaining CVE-2026-81578 (authentication bypass) and CVE-2026-82078 (remote code execution) in PaperCut to execute commands, perform reconnaissance, and create privileged accounts on servers at K-12 schools and universities in the US and Europe. Post-exploitation includes registry hive collection with lsa_collect.exe delivered via certutil, Meterpreter Java payloads from 194.180.48.134, and searches of PaperCut config files for passwords, LDAP bindings, and tokens. Stolen logins could provide a pathway into other critical systems across compromised environments.

The Hacker News·Sep 5, 07:31 UTC · 11d agoExploit / PoC in the wildCVE-2026-81578CVE-2026-820781

CVE-2026-82310: Apache Airflow FAB provider: FAB auth manager: deactivated users retain and renew Core API JWT access

Apache Airflow FAB provider 2.0.0-3.8.x lets deactivated users keep unexpired Core API JWTs and mint replacements indefinitely.

CVE-2026-82310 affects apache-airflow-providers-fab versions 2.0.0 before 3.9.0. Deactivating a user account does not stop tokens issued before deactivation. While password authentication correctly rejects the disabled account, the Core API continues to accept an existing unexpired token naming it and lets that token mint a replacement. Severity is rated moderate.

oss-security·Sep 15, 19:56 UTC · 1d agoVulnerabilityCVE-2026-82310

ZDI-26-578: NGINX HTTP Dav Module Alias Directive Integer Underflow Remote Code Execution Vulnerability

An unauthenticated integer underflow (CVE-2026-27654, CVSS 8.1) in NGINX's HTTP Dav module alias directive enables remote code execution.

ZDI advisory ZDI-26-578 describes an integer underflow in the alias directive of the NGINX HTTP Dav module that allows remote attackers to execute arbitrary code. Authentication is not required to exploit the vulnerability. ZDI rated the issue 8.1 on CVSS and assigned CVE-2026-27654.

ZDI Published Advisories·Aug 13, 05:00 UTC · Aug 13, 2026VulnerabilityCVE-2026-27654

CVE-2026-57866: Apache Impala: Secrets Exfiltration via SSRF

Apache Impala CVE-2026-57866 lets authenticated users abuse ai_generate_text() to exfiltrate secrets from configured Hadoop credential providers via SSRF.

A server-side request forgery affects Apache Impala versions 4.4.0 through 4.5.1. Authenticated users with permission to execute the ai_generate_text() function can exfiltrate secrets provided by credential providers configured via hadoop.security.credential.provider.path in core-site.xml. The attacker must know the secret's key name, and Apache rates the issue 'important'.

oss-security·Sep 8, 21:39 UTC · 7d agoVulnerability 3 sourcesCVE-2026-57866

[webapps] Apache Gravitino 1.2.1 - SSRF

Exploit-DB publishes a webapps SSRF proof-of-concept exploit targeting Apache Gravitino 1.2.1.

Exploit-DB entry 52641 documents a server-side request forgery (SSRF) exploit against Apache Gravitino version 1.2.1. The entry is categorized under web applications and provides a working proof of concept for the flaw.

Exploit-DB·Aug 11, 00:00 UTC · Aug 11, 2026Exploit / PoC1

CVE-2026-75156: Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider flaw (CVE-2026-75156) lets attackers bypass Azure AD OAuth token validation via unvalidated issuer and audience claims.

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD id_tokens during OAuth login, enabling cross-tenant authentication bypass. The issue affects deployments where the FAB auth manager is configured with Azure AD as an OAuth provider. A fix is available in version 3.8.1. Severity is rated moderate.

oss-security·Sep 8, 16:37 UTC · 8d agoVulnerabilityCVE-2026-75156

[webapps] Linuxfabrik monitoring_plugins_6.0.0 - SSRF

A public proof-of-concept exploit for an SSRF flaw in Linuxfabrik monitoring_plugins 6.0.0 appeared on Exploit-DB.

Exploit-DB listing 52653 discloses a server-side request forgery (SSRF) vulnerability in Linuxfabrik monitoring_plugins version 6.0.0, classified under web applications. A proof-of-concept exploit is publicly available. No CVE identifier or evidence of in-the-wild exploitation is provided in the listing.

Exploit-DB·Aug 18, 00:00 UTC · 29d agoExploit / PoC

ZDI-26-526: (0Day) PAX Technology Q80 Application Installer Signature Verification Bypass Remote Code Execution Vulnerability

ZDI discloses an unauthenticated, network-adjacent RCE in PAX Technology Q80 payment terminals via installer signature bypass, rated CVSS 7.5.

ZDI-26-526 describes a signature verification bypass in the PAX Technology Q80 application installer that lets network-adjacent attackers execute arbitrary code without authentication. The 0-day is tracked as CVE-2026-19910 and CVE-2026-19911 and carries a CVSS score of 7.5. No public patch was noted at the time of disclosure.

ZDI Published Advisories·Aug 14, 05:00 UTC · Aug 14, 2026AdvisoryCVE-2026-19910CVE-2026-19911

CVE-2026-81578 + CVE-2026-82078 | PaperCut NG/MF Authentication Bypass and Unsafe Dynamic Class Loading Vulnerabilities

Two chained PaperCut NG/MF flaws, CVE-2026-81578 and CVE-2026-82078, enable pre-auth RCE, with active exploitation confirmed in customer environments.

PaperCut NG/MF is affected by CVE-2026-81578, an improper access control flaw (CVSS 4.0 8.8) allowing unauthenticated configuration changes, and CVE-2026-82078, an unsafe dynamic class loading flaw (CVSS 4.0 9.4) enabling arbitrary Java bytecode execution. Chained, they yield pre-authentication remote code execution on the PaperCut Application Server. PaperCut confirmed active exploitation and customer incidents, and Huntress observed exploitation starting August 26, 2026. Emergency Patch Release 2 is available for NG/MF v24-v26, with IOCs including suspicious pc-app.exe child processes, truncated server.log files, and AnyDesk installs.

Horizon3.ai·Sep 1, 15:31 UTC · 15d agoExploit / PoC in the wildCVE-2026-81578CVE-2026-820781

[remote] PCMan 2.0.7 - Buffer Overflow

A remote buffer overflow in PCMan 2.0.7 has a public proof-of-concept exploit published on Exploit-DB.

Exploit-DB listing 52657 discloses a remote buffer overflow vulnerability in PCMan version 2.0.7. A proof-of-concept exploit is publicly available, allowing attackers to potentially crash or compromise affected instances. The listing includes no CVE identifier and reports no observed exploitation in the wild.

Exploit-DB·Aug 18, 00:00 UTC · 29d agoExploit / PoC1

U.S. CISA adds Langflow, Apache Tomcat, and N-able N-central flaws to its Known Exploited Vulnerabilities catalog

Security Affairs·Aug 5, 15:25 UTC · Aug 5, 2026Exploit / PoC in the wildCVE-2026-9198CVE-2026-18556CVE-2026-34486

CVE-2026-34908: UniFi OS Auth Bypass Vulnerability

Ubiquiti disclosed CVE-2026-34908, a CVSS 10.0 authentication bypass in UniFi OS letting network-adjacent attackers alter device configuration without credentials.

CVE-2026-34908 is an improper access control flaw (CWE-284) in Ubiquiti UniFi OS devices, disclosed in UI Security Advisory Bulletin 064, with a CVSS 3.1 base score of 10.0. An unauthenticated network-adjacent attacker can bypass access controls and modify system configuration, with scope-changed impact on downstream network services such as routing, VPN, and connected access points. Fixed firmware is available, and workarounds include restricting management ports to trusted subnets, isolating management interfaces on a dedicated VLAN, and disabling remote access features. No public proof-of-concept code was observed at the time of publication.

Web discovery (articles for new exploits & KEV entries)·Sep 8, 21:57 UTC · 7d agoVulnerabilityCVE-2026-34908

Attackers exploit zero-days in consistently besieged SonicWall product

Two actively exploited SonicWall SMA 1000 zero-days chain to unauthenticated RCE; patches released and CISA added both to KEV.

SonicWall disclosed and patched two zero-days in SMA 1000 appliances: CVE-2026-83548, a maximum-severity pre-authentication SSRF, and CVE-2026-83549, a high-severity OS command injection. Rapid7 said chaining the flaws yields unauthenticated remote code execution, and CISA added both to its KEV catalog Wednesday. The vendor provided no IOCs or victim counts, urging customers to hunt for compromise, reimage or redeploy appliances, and reset all passwords and tokens. The product has faced repeated exploitation, including ransomware-linked flaws used by INC and Akira.

CyberScoop·Sep 3, 22:12 UTC · 12d agoExploit / PoC in the wildCVE-2026-83548CVE-2026-83549

ZDI-26-622: Microsoft Windows IKEv2 AES-GCM Decryption Integer Underflow Remote Code Execution Vulnerability

ZDI disclosed CVE-2026-50696, a CVSS 8.1 integer underflow in Windows IKEv2 AES-GCM decryption enabling unauthenticated remote code execution on specific IPsec configurations.

The Zero Day Initiative published ZDI-26-622 describing a remote code execution vulnerability in Microsoft Windows' IKEv2 AES-GCM decryption path, caused by an integer underflow. Authentication is not required for exploitation, but only systems using specific IPsec configurations are affected. ZDI assigned the vulnerability a CVSS score of 8.1 and the identifier CVE-2026-50696.

ZDI Published Advisories·Sep 8, 05:00 UTC · 8d agoAdvisoryCVE-2026-506961

Organizations Warned of Cisco Secure FMC Exploitation

Cisco and CISA warn that critical FMC authentication bypass CVE-2026-20079 is actively exploited; CISA added it to the KEV catalog with a September 12 deadline.

Cisco and CISA flagged active exploitation of CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center allowing remote, unauthenticated attackers to run malicious scripts and gain root access via crafted HTTP requests. Cisco patched the flaw in early March and added IoCs in late July, but confirmed active exploitation in its September 9 advisory; CISA added it to the KEV catalog requiring federal remediation by September 12. Talos identified three activity clusters exploiting CVE-2026-20079 and CVE-2026-20316, including state-sponsored and financially motivated actors, and this is the third FMC vulnerability in KEV this year after CVE-2026-20316 and CVE-2026-20131.

SecurityWeek·updated Sep 14, 09:27 UTC · 2d ago·first Sep 10, 10:06 UTC · 6d agoExploit / PoC in the wild 11 sourcesCVE-2026-20079CVE-2026-20316CVE-2026-20131

PaperCut NG/MF vulnerabilities exploited in zero-day attacks

PaperCut warns of active zero-day exploitation chaining CVE-2026-81578 and CVE-2026-82078 for pre-auth remote code execution in NG/MF print management.

PaperCut Software confirmed attackers are chaining two vulnerabilities in PaperCut NG and MF: CVE-2026-81578, an improper access control flaw in the web management interface allowing unauthenticated configuration changes, and CVE-2026-82078, unsafe dynamic class loading in database connection utilities enabling arbitrary Java bytecode execution. Huntress reproduced a pre-authentication remote configuration takeover and full RCE chain against PaperCut NG 25.0.11.75758 and observed limited exploitation at two customers, including post-exploitation whoami and ver commands. The vendor released Emergency Patch Release 2 with additional hardening and urged restricting Application Server web access to trusted IPs. In 2023, Clop and LockBit affiliates abused CVE-2023-27350 and CVE-2023-27351 in the same software.

Help Net Security·Aug 31, 14:39 UTC · 16d agoExploit / PoC in the wildCVE-2026-81578CVE-2026-82078CVE-2023-27350+1 CVEs1