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USN-8742-1: Netty vulnerability

Ubuntu issues USN-8742-1 fixing a Netty DNS cache poisoning flaw caused by improper NS record bailiwick validation.

Ubuntu Security Notice USN-8742-1 addresses a vulnerability in the Netty framework in which NS records are incorrectly validated for bailiwick. An attacker could potentially exploit this to facilitate DNS cache poisoning attacks. Updated packages are available for supported Ubuntu releases.

Ubuntu Security Noticesupdated · 9h agofirst · 6d agoAdvisory 15 sources

USN-8563-5: nginx vulnerability

Ubuntu ships improved nginx fix for CVE-2026-42533 after earlier patch regression; flaw allows remote crash and possible code execution.

USN-8563-5 provides a better fix for CVE-2026-42533 after the original fix from USN-8563-1 was backed out in USN-8563-2 because it caused a regression. The flaw stems from nginx incorrectly handling certain map directives using regex matching and capture variables, allowing a remote attacker to crash nginx, causing denial of service, or possibly execute arbitrary code. The original advisory also described a use-after-free in the ngx_http_ssi_module when configured with Server-Side Includes, proxy_pass, and proxy buffering.

USN-8730-1: Linux kernel vulnerability

Ubuntu issued USN-8730-1 fixing Linux kernel flaws in IPv6 networking and Netfilter that could allow system compromise.

Ubuntu released USN-8730-1 addressing a security issue discovered in the Linux kernel. The update corrects flaws in the IPv6 networking and Netfilter subsystems. Ubuntu states an attacker could possibly use the issue to compromise the system.

Ubuntu Security Notices · 9d agoAdvisory 6 sources

USN-8675-2: Perl vulnerabilities

Ubuntu issued USN-8675-2 fixing two Perl flaws (CVE-2026-12087, CVE-2026-13221) enabling information disclosure and regex-based security bypass on 26.04 LTS.

Ubuntu released USN-8675-2, extending the fixes from USN-8675-1 to Perl packages on Ubuntu 26.04 LTS. The update addresses CVE-2026-12087, an out-of-bounds heap read in the Socket module when handling short source addresses, which could lead to information disclosure. It also fixes CVE-2026-13221, where regular expressions containing many fixed string alternatives could produce incorrect matches and bypass security restrictions. No exploitation is reported in the notice.

USN-8756-1: Yelp vulnerability

Ubuntu patches Yelp help viewer flaw allowing crafted help documents to execute arbitrary scripts and expose sensitive user information.

USN-8756-1 fixes a vulnerability in Yelp, Ubuntu's help viewer, where help documents could execute arbitrary scripts. An attacker could trick a user into opening a specially crafted help document to obtain sensitive information. Ubuntu has released updated packages.

Ubuntu Security Notices · 2d agoAdvisory

USN-8731-1: MiniUPnPd vulnerability

Ubuntu issued USN-8731-1 fixing a MiniUPnPd integer underflow allowing remote DoS or information disclosure via malformed SOAPAction headers.

Ubuntu released USN-8731-1 to address an integer underflow vulnerability in MiniUPnPd's SOAPAction header parsing. A remote attacker could send a malformed SOAPAction header containing a single quote to trigger a denial of service or information disclosure. MiniUPnPd is a lightweight UPnP daemon widely deployed on routers and gateways.

Ubuntu Security Notices · 9d agoAdvisory1

USN-8736-1: Perl vulnerabilities

Ubuntu issued USN-8736-1 fixing two Perl regex flaws that could cause denial of service, code execution, or security-restriction bypass.

Ubuntu released a security notice addressing two Perl vulnerabilities in regular expression handling. CVE-2026-15534 involves mishandling of large inputs during regex matching, enabling out-of-bounds heap reads or writes that could lead to denial of service or arbitrary code execution. CVE-2026-19487 involves incorrect matching for regexes with alternative branches, allowing security restrictions to be bypassed. Users are advised to apply the updated packages.

USN-8734-1: PHP vulnerabilities

Ubuntu issued USN-8734-1 fixing three PHP denial-of-service flaws in SOAP, metaphone() and phar handling, including CVE-2026-7262 and CVE-2026-7568.

Ubuntu security notice USN-8734-1 addresses multiple PHP vulnerabilities. CVE-2026-7262 is a NULL pointer dereference in Apache map decoding in SOAP servers with a typemap configured; CVE-2026-7568 is a signed integer overflow in metaphone() causing an out-of-bounds read; and CVE-2026-7260 involves unbounded recursion from circular symbolic links in phar archives. All issues could allow remote attackers to cause denial-of-service conditions.

USN-8762-1: polkit vulnerability

Ubuntu warns polkit mishandles cookie input, letting a local attacker crash the daemon or possibly execute arbitrary code.

Ubuntu Security Notice USN-8762-1 addresses a vulnerability in polkit stemming from incorrect handling of cookie input. A local attacker could exploit the flaw to cause polkit to crash, producing a denial of service, or potentially execute arbitrary code. The notice indicates exploitation requires local access to the affected system.

Ubuntu Security Notices · 1d agoAdvisory

USN-8732-1: Minetest vulnerability

Ubuntu issued USN-8732-1 fixing a Minetest LuaJIT sandbox escape that let malicious mods execute arbitrary code on servers.

Ubuntu Security Notice USN-8732-1 addresses a flaw in Minetest where the Lua sandbox environment was not properly sanitized when using LuaJIT. A malicious mod could escape the sandbox, execute arbitrary code, and gain full file system access on the server. Administrators should update to the patched packages.

Ubuntu Security Notices · 9d agoAdvisory

Manchester Airports Group breached, millions of customers’ data stolen

Manchester Airports Group confirmed attackers stole customer booking and WiFi signup data affecting about 8.7 million customers across three UK airports.

Manchester Airports Group (MAG) confirmed an unauthorized third party obtained customer data tied to car park, lounge and Fast Track bookings and WiFi sign-ups at Manchester, Stansted and East Midlands airports. Stolen data includes email addresses, phone numbers, vehicle registrations and postcodes; no payment or banking details were held in the affected systems. UK media reported roughly 8.7 million customers affected. The Manage My Booking portal was disabled as a precaution, authorities were informed, and airport operations were not disrupted.

Help Net Security · 16d agoData breach in the wild

USN-8514-2: OpenSSH vulnerability

Ubuntu backports an OpenSSH fix to older LTS releases for an scp flaw enabling setuid file placement and privilege escalation.

USN-8514-2 extends the USN-8514-1 OpenSSH fix to Ubuntu 14.04 LTS, 18.04 LTS, and 20.04 LTS. The flaw stems from incorrect file permission handling when downloading files as root using the legacy scp protocol without the preserve-mode option. An attacker could exploit this to install setuid or setgid files on the system, potentially leading to privilege escalation.

Ubuntu Security Notices · 20h agoVulnerability

CVE-2026-86219: Authen::SASL::Perl::DIGEST_MD5 versions before 2.2100 for Perl accept replayed authentication responses via unverified nonce in server_step

Authen::SASL::Perl::DIGEST_MD5 before 2.2100 for Perl accepts replayed DIGEST-MD5 authentication responses via unverified nonce handling (CVE-2026-86219).

CVE-2026-86219 affects Authen::SASL::Perl::DIGEST_MD5 versions before 2.2100 for Perl. The server_step function does not verify the nonce, allowing replayed authentication responses to be accepted in DIGEST-MD5 SASL exchanges. The fix is available in version 2.2100 of the perl-authen-sasl distribution.

oss-security · 10d agoVulnerabilityCVE-2026-862191

280,000 Impacted by Premier Medical Group Data Breach

New York healthcare provider Premier Medical Group is notifying 282,075 patients that personal and medical information was stolen in a June breach.

New York healthcare provider Premier Medical Group is notifying 282,075 patients whose personal and medical data was stolen in a June breach. Attackers accessed certain files on June 14 after some systems were disrupted, but PMG has not disclosed how the attack occurred or who was responsible. Exposed data includes names, contact information, dates of birth, treatment and diagnostic details, medication information, and health insurance details. PMG reported the incident to HHS, which added it to its public breach portal this week.

SecurityWeek · 18h agoData breach in the wild

CVE-2026-86466: Apache Airflow FAB provider: FAB Authentik provider: id_token issuer/audience not validated

Apache Airflow FAB provider before 3.9.0 skips issuer/audience validation on Authentik id_tokens, allowing tokens minted for other clients to authenticate to Airflow.

CVE-2026-86466 affects apache-airflow-providers-fab before 3.9.0. The Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of accepted id_tokens. An attacker holding a token minted by the same Authentik identity provider for a different client application can present it to Airflow and be authenticated. Severity is rated moderate by the reporter.

Extortion Group FulcrumSec Claims 86GB Manchester Airports Data Theft

Extortion group FulcrumSec claims stealing 86GB of Manchester Airports Group data, exposing 8.7 million customers' personal and booking details.

Manchester Airports Group disclosed a breach on August 27 affecting parking, lounge, Fast Track and WiFi registrations at Manchester, London Stansted and East Midlands airports, impacting 8.7 million customers, most exposed only email addresses. FulcrumSec claims it stole about 86GB via airport-specific Iterable API credentials exposed in client-side JavaScript, including a 21.5GB Manchester export with booking histories, marketing data and nearly 200,000 records on upcoming 2026 travel. BleepingComputer verified sample records against a real traveler's Fast Track history; MAG declined to address the group's specific claims. Researchers warn the combination of UK postcodes, vehicle registrations and booking details could enable convincing targeted phishing, and MAG says no payment card or banking data was exposed.

Security Affairs · 17d agoData breach in the wild

Manchester Airports Group Hit by Cyber Incident

Manchester Airports Group disclosed that an unauthorized third party accessed customer data from bookings and airport Wi-Fi registrations.

Manchester Airports Group, which operates Manchester, Stansted and East Midlands airports, reported a cyber incident in which an unauthorized third party accessed customer data. Affected data is linked to bookings and airport Wi-Fi registrations. The number of affected customers was not stated in this report.

Infosecurity Magazine · 20d agoData breach in the wild

USN-8767-1: Snapcast vulnerability

Ubuntu patches Snapcast mishandling of crafted JSON-RPC requests enabling remote code execution and data exposure.

Ubuntu security notice USN-8767-1 addresses a vulnerability in Snapcast, a multiroom audio streaming server. The software incorrectly handled crafted JSON-RPC requests, which could allow a remote attacker to execute arbitrary code or obtain sensitive information. Users are advised to update the snapcast package.

Ubuntu Security Notices · 1d agoAdvisory

USN-8735-1: HSQLDB vulnerability

Ubuntu released USN-8735-1 fixing an HSQLDB flaw that lets specially crafted database files overwrite arbitrary files.

Ubuntu Security Notice USN-8735-1 addresses a vulnerability in HSQLDB, which incorrectly handled specially crafted database files. An attacker could exploit the flaw to overwrite arbitrary files on affected systems; updated packages are available.

Ubuntu Security Notices · 8d agoAdvisory

Russian suspect in bank account takeovers is extradited to US

Russian web developer Sergei Filimonov was extradited from Georgia to the US to face charges in a multimillion-dollar bank account takeover fraud.

Sergei Anatolyevich Filimonov, 36, appeared in an Atlanta federal court on September 4 and pleaded not guilty to bank fraud, wire fraud, access device fraud, and aggravated identity theft charges. Prosecutors say that from November 2023 to October 2025 his group bought sponsored search-engine links that diverted online banking customers to spoofed login pages, stole their credentials, and initiated unauthorized wire transfers. The FBI linked the scheme to the December 2025 seizure of the domain web3adspanels.org, identifying at least 19 victims, roughly $14.6 million in confirmed losses, and about $28 million in attempted losses.

The Record · 8d agoPolicy & legal

USN-8769-1: phpseclib vulnerability

Ubuntu patches phpseclib non-constant-time padding validation enabling remote padding oracle timing attacks against AES-CBC.

Ubuntu security notice USN-8769-1 addresses a vulnerability in phpseclib where padding validation was not performed in constant time when using AES in CBC mode. A remote attacker could leverage this timing side channel to conduct a padding oracle attack and decrypt sensitive information. Users are advised to update the phpseclib package.

Ubuntu Security Notices · 1d agoAdvisory

USN-8754-1: Freeciv vulnerability

Ubuntu patches Freeciv stack overflow where remote attackers crash clients or servers using crafted network packets.

USN-8754-1 fixes a Freeciv vulnerability where certain network packets trigger a stack overflow. A remote attacker could use this to crash Freeciv clients or servers, resulting in denial of service. Ubuntu released updated packages.

Ubuntu Security Notices · 2d agoAdvisory1