Ubuntu

Security Notices
Ubuntu USN-8957-1 Fixes authd Account-Matching FlawNew!!
10/27/2026

Ubuntu USN-8957-1 fixes authd account matching. Update Ubuntu 26.10 to authd 0.7.1, restart the service, validate identity mapping, and retain evidence.

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Security Notices
Ubuntu USN-8954-1 Fixes zlib Heap Buffer OverflowNew!!
10/22/2026

Ubuntu USN-8954-1 fixes a zlib heap overflow. Install release-specific packages, restart dependent services, test workloads, and retain evidence.

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Security Notices
Ubuntu USN-8952-1 Fixes Tornado Request-Handling FlawsNew!!
10/22/2026

Ubuntu USN-8952-1 fixes Tornado request-handling flaws. Update release-specific packages, restart dependent services, test web paths, and retain evidence.

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Security Notices
Ubuntu USN-8890-2 Extends libsoup Fixes to Ubuntu 26.10New!!
10/21/2026

Ubuntu USN-8890-2 extends eight libsoup fixes to Ubuntu 26.10. Update libsoup3, restart consumers, test HTTP workflows, and retain evidence.

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Security Notices
Ubuntu USN-8951-1 Fixes c-ares DNS Parsing FlawsNew!!
10/21/2026

Ubuntu USN-8951-1 fixes c-ares DNS parsing flaws. Update release-specific packages, restart consumers, validate resolution, and retain evidence.

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Security Notices
Ubuntu USN-8947-1 Removes Compromised CA Trust from NSSNew!!
10/21/2026

Ubuntu USN-8947-1 removes compromised CA trust from NSS. Update supported or ESM packages, restart consumers, validate TLS, and retain evidence.

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Security Notices
Ubuntu USN-8950-1 Fixes Poppler PDF Denial of ServiceNew!!
10/21/2026

Ubuntu USN-8950-1 fixes a Poppler PDF denial of service. Update matching packages, test document workflows, monitor crashes, and retain evidence.

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Security Notices
Ubuntu USN-8948-1 and USN-8948-2 Fix Critical PHP RCE FlawsNew!!
10/21/2026

Ubuntu USN-8948-1 and -2 fix two critical PHP RCE flaws across current and ESM releases. Update packages, restart workers, and retain evidence.

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Security Notices
Ubuntu USN-8946-1 Fixes Unbound DNS VulnerabilitiesNew!!
10/21/2026

Ubuntu USN-8946-1 fixes ten Unbound issues, including denial of service and cache poisoning. Update matching packages, validate DNS, and retain evidence.

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Security Notices
Ubuntu USN-8945-1 Fixes XZ Utils Memory Handling Flaw
10/20/2026

Ubuntu USN-8945-1 fixes an XZ Utils invalid memory write across supported releases. Update the matching packages, validate, and retain evidence.

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