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GeoNetwork Fixes Unauthenticated RCE Chain Affecting Government Geoportal Backends
GeoNetwork patched two chained flaws (CVE-2026-63219, CVE-2026-58400) enabling unauthenticated RCE in government geospatial metadata catalogs.
Two flaws in the open-source GeoNetwork catalog chain into unauthenticated RCE: a missing authorization check on the formatter upload endpoint (CVE-2026-63219, CVSS 8.6) and an unsafe Saxon XSLT processor configuration allowing Java execution (CVE-2026-58400, CVSS 9.1). Fixes shipped in versions 4.4.12 and 4.2.17 on July 8, 2026, with details published August 31. Ethiack fingerprinted 121 internet-exposed vulnerable deployments across 39 countries, 89% tied to government or military agencies. No exploitation in the wild or KEV listing was reported at disclosure.
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Unauthenticated PHP Object Injection to Remote Code Execution on GiveWP
Patchstack details an unauthenticated PHP object injection chain enabling remote code execution in the GiveWP WordPress donation plugin.
Patchstack disclosed an unauthenticated remote code execution vulnerability in the GiveWP WordPress donation plugin. An attacker with no account can execute arbitrary commands on the server of an affected GiveWP site. The full chain is reachable when a site has one published donation form and one active payment gateway, a configuration the researcher describes as a common default.
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CVE-2026-78318: Apache Syncope: Unauthenticated reflected XSS in Console and Enduser
Apache Syncope Console and Enduser UIs suffer unauthenticated reflected XSS via notification messages, affecting versions 4.0.4 through 4.1.2.
CVE-2026-78318 is a moderate-severity cross-site scripting flaw in Apache Syncope's syncope-client-idrepo-common-ui module. The notification message, optionally shown by the Console and Enduser UIs, is improperly neutralized, enabling unauthenticated reflected XSS. Affected versions are 4.0.4 through 4.0.7 and 4.1.0-M0 through 4.1.2; no exploitation is reported.
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CVE-2026-82439: Apache Storm DRPC: Unauthenticated Unbounded Memory Growth in DRPC
Unauthenticated DRPC requests to Apache Storm 3.0.0 cause unbounded memory growth in the function-name queue map, enabling DoS.
CVE-2026-82439 (severity: important) affects Apache Storm DRPC (storm-server) versions 3.0.0 before 3.1.0. The DRPC server maintained a map from function name to request queue, creating an entry on first sight of a name, but no code path ever removed entries: request cleanup removed requests from queues but the queue objects and map entries persisted. An unauthenticated attacker could send requests for arbitrary function names to drive unbounded memory growth and crash the server.
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CVE-2026-41871: Apache Nutch: Unauthenticated reflection-based job execution in Nutch Server (Nutch REST API)
Apache fixed CVE-2026-41871, an unauthenticated unsafe-reflection job execution flaw in Nutch Server's REST API affecting versions 1.10-1.22.
CVE-2026-41871 describes a Missing Authorization and Unsafe Reflection vulnerability in Apache Nutch Server (the Nutch REST API), rated important by Apache. Affected versions are Apache Nutch 1.10 through 1.22, allowing unauthenticated reflection-based job execution via externally controlled class selection. Users are recommended to upgrade to version 1.23, which removes the Nutch Server; users who cannot upgrade must apply mitigations.
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CVE-2026-84501: Apache ZooKeeper: Operational log forgery via newline injection in EnsembleAuthenticationProvider
Unauthenticated attackers can forge Apache ZooKeeper operational log lines via newline injection in crafted ensemble authentication requests.
CVE-2026-84501 (moderate severity) affects Apache ZooKeeper 3.9.0-3.9.5 and 3.8.0-3.8.6. An unauthenticated attacker can inject arbitrary fake log lines into the operational log by sending a crafted add_auth("ensemble", ...) request containing newline characters. The forged entries could mislead operators or corrupt log-based monitoring and forensics.
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CVE-2026-84439: Apache ZooKeeper: Audit log injection via unsanitized output from multiple sources
Apache ZooKeeper audit logs are vulnerable to arbitrary field injection by unauthenticated attackers via tab characters in digest auth requests.
CVE-2026-84439 (important severity) affects Apache ZooKeeper 3.9.0-3.9.5 and 3.8.0-3.8.6 when audit logging is enabled (zookeeper.audit.enable=true). An unauthenticated attacker can inject arbitrary fields into the audit log by sending a digest authentication request with embedded tab characters, undermining audit trail integrity and potentially enabling log-analysis evasion or spoofing.
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graphql-go/graphql <= 0.8.1: quadratic CPU-exhaustion DoS via OverlappingFieldsCanBeMergedRule
Unauthenticated quadratic CPU-exhaustion DoS disclosed in graphql-go/graphql up to v0.8.1 via OverlappingFieldsCanBeMergedRule; no fixed version exists.
Evgenios Gkritsis publicly disclosed an algorithmic-complexity denial-of-service flaw in github.com/graphql-go/graphql affecting all released versions up to and including v0.8.1. The defect is triggered via the OverlappingFieldsCanBeMergedRule validation, is unauthenticated and network-reachable, and causes quadratic CPU exhaustion. No fixed version exists; the disclosure was public because the project has no private security-reporting channel or SECURITY.md.
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CVE-2026-49362: Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation
CVE-2026-49362: unauthenticated attackers can create arbitrary durable queues in ActiveMQ Artemis via the CORE protocol, enabling denial of service.
A missing authentication check in the CORE protocol handler of Apache Artemis and Apache ActiveMQ Artemis, tracked as CVE-2026-49362, lets unauthenticated remote attackers create arbitrary durable queues. This enables unauthorized broker state manipulation and potential denial of service. Affected versions are artemis-server in Apache Artemis 2.50.0 through 2.56.0 and ActiveMQ Artemis 1.0.0 through 2.44.0. Apache rates the issue as important.
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thttpd v2.26 Stack-Based Buffer Overflow in thttpd redirect CGI Program
The redirect CGI program shipped with thttpd v2.26 has a stack buffer overflow that unauthenticated attackers can trigger for crashes or possible code execution.
A stack-based buffer overflow exists in the redirect CGI program distributed with thttpd v2.26. Unsafe string concatenation when constructing redirect URLs from attacker-controlled CGI environment variables causes the overflow. A remote, unauthenticated attacker can trigger it via a crafted HTTP request, crashing the CGI process and causing denial of service. In environments lacking modern exploit mitigations, code execution may also be possible.
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Hack One Robot, Reach the Next: Unitree G1 Security Flaws
Researcher chained two Unitree G1 flaws (CVE-2026-76639, CVE-2026-76640) to gain unauthenticated root access, with compromised robots able to infect others via Bluetooth.
Security researcher Olivier Laflamme chained a path-traversal file-write flaw (CVE-2026-76639) in the G1 chatbot service and a Bluetooth server buffer overflow (CVE-2026-76640) to achieve unauthenticated root access remotely. The chain abuses Unitree's cloud API as a decryption oracle for the AES-128 key that unlocks BLE and WebRTC channels, and a compromised robot can propagate the attack to nearby G1 units. Unitree patched the cloud ownership-check flaw, paid a $5,000 bounty, and firmware fixes for BLE pairing and the buffer overflow remain harder to deliver.
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Cisco Warns of Seven ClamAV Flaws, Two With Public PoCs
Cisco warns of seven ClamAV denial-of-service flaws in Secure Endpoint Connector, two with public PoCs; patches due in August.
Cisco warned that seven ClamAV denial-of-service vulnerabilities, tracked as CVE-2026-20337 through CVE-2026-20339 and CVE-2026-20345 through CVE-2026-20348, affect the Secure Endpoint Connector on Windows, macOS and Linux. Two flaws, CVE-2026-20337 (CVSS 7.5, out-of-bounds write) and CVE-2026-20338 (memory double-free), have public proof-of-concept code, but Cisco PSIRT reports no evidence of malicious exploitation. Fixes shipped in ClamAV 1.5.4, with Cisco patches due in August and no workaround available. Windows is rated high risk because ClamAV runs with elevated privileges there.
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ZDI-26-712: NoMachine nxhtd Server-Side Request Forgery Information Disclosure Vulnerability
ZDI disclosed CVE-2026-92210, an unauthenticated server-side request forgery in NoMachine's nxhtd server leading to information disclosure (CVSS 7.2).
ZDI published advisory ZDI-26-712 describing a server-side request forgery vulnerability in NoMachine's nxhtd server, tracked as CVE-2026-92210 with CVSS 7.2. Remote attackers can initiate arbitrary server-side requests without authentication, resulting in information disclosure. The advisory does not state whether exploitation has been observed or a patch released.
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Skullcandy Dime 3 Bluetooth Flaw Lets Nearby Attackers Hijack Audio and Spy Through Microphone
Skullcandy Dime 3 earbuds on firmware 1.0.0.28 accept unauthenticated Bluetooth pairing via Airoha SDK flaw CVE-2025-20701, enabling audio hijack and microphone capture.
CERT/CC vulnerability note VU#859658 describes insecure Bluetooth Classic (BR/EDR) pairing on Skullcandy Dime 3 (model S2DCW) firmware 1.0.0.28, linked to CVE-2025-20701 in the Airoha Bluetooth audio SDK. The NoInputNoOutput I/O capability lets unknown nearby devices pair without pairing mode, PIN, passkey or user interaction, then bond and automatically reconnect. An attacker can hijack the A2DP audio session and access Hands-Free or Headset profiles to capture live microphone audio. Firmware 1.0.0.30 reportedly fixes the flaw, but the earbuds cannot be updated through the Skullcandy app, leaving current users without a consumer-accessible patch path.
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VU#756733: Calix GS7 XGS GS5239XG residential router contains missing authentication vulnerability
CERT/CC warns Calix GS7 XGS GS5239XG routers on firmware EXOS/6.6.47 expose an unauthenticated UPnP WANIPConnection service on the public WAN interface.
CERT/CC issued VU#756733 for a missing authentication vulnerability in the Calix GS7 XGS GS5239XG residential gateway running EXOS/6.6.47. The device's UPnP service, implemented with MiniUPnPd 2.3.7, is exposed on the WAN interface by default and does not require authentication, potentially letting remote attackers alter port mappings through the WANIPConnection service. The flaw affects routing, NAT, and firewall functionality for home networks.
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ZDI-26-580: Cisco Identity Services Engine Missing Authentication for Critical Function Information Disclosure Vulnerability
ZDI discloses CVE-2026-20190, a missing-authentication flaw in Cisco Identity Services Engine permitting unauthenticated sensitive information disclosure, rated CVSS 7.5.
ZDI-26-580 covers a missing authentication for critical function flaw in Cisco Identity Services Engine. Unauthenticated remote attackers can disclose sensitive information from affected installations. The vulnerability is tracked as CVE-2026-20190 and rated CVSS 7.5. The advisory does not indicate exploitation in the wild.
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ZDI-26-584: dnsmasq DNSSEC NSEC/NSEC3 Type Bitmap Processing Infinite Loop Denial-of-Service Vulnerability
ZDI disclosed an unauthenticated infinite-loop denial-of-service flaw (CVE-2026-4890) in dnsmasq DNSSEC NSEC/NSEC3 bitmap processing.
The Zero Day Initiative published ZDI-26-584 describing an infinite loop in dnsmasq's processing of DNSSEC NSEC/NSEC3 type bitmaps. Remote unauthenticated attackers can trigger a denial-of-service condition on affected installations. ZDI assigned a CVSS score of 7.5 and the identifier CVE-2026-4890.
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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.
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