CVE-2026-90698

NameCVE-2026-90698
DescriptionA security flaw has been discovered in memcached 1.6.41/1.6.42/1.6.43. This vulnerability affects the function try_read_command_asciiauth of the file proto_text.c of the component mcmc Tokenizer. The manipulation results in out-of-bounds read. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.44 is able to resolve this issue. The patch is identified as af05c9302bba508b736c3da1d5670f63fe8b7db4. You should upgrade the affected component.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
memcached (PTS)bookworm1.6.18-1vulnerable
trixie1.6.38-1vulnerable
forky, sid1.6.45-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
memcachedsource(unstable)1.6.45-1

Notes

Fixed by: https://github.com/memcached/memcached/commit/af05c9302bba508b736c3da1d5670f63fe8b7db4 (1.6.44)

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