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Vulnerability fixes in util-linux-2.42.3
util-linux 2.42.3 patches mount(8) flaws CVE-2026-76642 and CVE-2026-78410, which allow privileged operations after mount helper failure.
util-linux 2.42.3 ships security fixes for two mount(8) vulnerabilities. CVE-2026-76642 causes post-mount hooks (X-mount.idmap, X-mount.owner/group/mode) to run even when an external mount helper exits nonzero, permitting privileged operations on the pre-existing target filesystem. CVE-2026-78410 is a time-of-check-to-time-of-use (TOCTOU) issue in mount(8). No exploitation or PoC is mentioned in the release notes.
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Containers on fire: from container escapes to supply chain attacks
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Apple Updates Everything, (Mon, Sep 14th)
Apple patched a record 261 vulnerabilities across iOS 27, macOS Golden Gate 27, watchOS 27, and other platforms, with none flagged as exploited.
Apple's annual OS update shipped iOS/iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27, and visionOS 27 plus bug-fix releases for the 26 and 15 branches, fixing a record 261 vulnerabilities. Notable issues include multiple kernel flaws allowing root privilege escalation (CVE-2026-43689, CVE-2026-43691, CVE-2026-43698, CVE-2026-43786), remote code execution in CUPS (CVE-2026-43692), kernel memory corruption via malicious NFS servers (CVE-2026-43686, CVE-2026-43687), and WebKit memory corruption from crafted web content (CVE-2026-43715). No vulnerabilities are labeled as actively exploited, and Apple does not assign per-CVE severities. Users report iOS 26.7 being downloaded when iOS 27 is intended, and tools like Little Snitch and BlockBlock need updates before upgrading to macOS 27.
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