CVE-2026-73282

NameCVE-2026-73282
DescriptionIn ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
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 Bugs1144192

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)bookworm1:9.2p1-2+deb12u10vulnerable
bookworm (security)1:9.2p1-2+deb12u9vulnerable
trixie1:10.0p1-7+deb13u4vulnerable
trixie (security)1:10.0p1-7+deb13u2vulnerable
forky1:10.4p1-5vulnerable
sid1:10.5p1-1fixed
openssh-gssapi (PTS)forky1:10.4p1-5vulnerable
sid1:10.5p1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsource(unstable)1:10.5p1-11144192
openssh-gssapisource(unstable)1:10.5p1-1

Notes

[trixie] - openssh <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2026/08/12/1
https://www.openssh.org/releasenotes.html#10.5

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