CVE-2026-0861

NameCVE-2026-0861
DescriptionPassing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1125678

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
glibc (PTS)bullseye2.31-13+deb11u11vulnerable
bullseye (security)2.31-13+deb11u13vulnerable
bookworm2.36-9+deb12u13vulnerable
bookworm (security)2.36-9+deb12u7vulnerable
trixie2.41-12+deb13u1vulnerable
forky, sid2.42-7vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
glibcsource(unstable)(unfixed)1125678

Notes

[trixie] - glibc <no-dsa> (Minor issue)
[bookworm] - glibc <no-dsa> (Minor issue)
https://sourceware.org/bugzilla/show_bug.cgi?id=33796

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