CVE-2026-115374

NameCVE-2026-115374
DescriptionIncus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a signature verification flaw in its built-in S3 server that allows presigned URL holders to inject unsigned x-amz-* headers. Attackers can add an unsigned X-Amz-Copy-Source header to a presigned upload URL to copy other bucket objects onto the granted key, disclosing their contents and ETags.
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
incus (PTS)trixie6.0.4-2+deb13u10fixed
trixie (security)6.0.4-2+deb13u11fixed
forky7.0.1-5fixed
sid7.0.2-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
incussourcetrixie(not affected)
incussource(unstable)7.0.1-5

Notes

[trixie] - incus <not-affected> (Vulnerable code not present, only affects 7.x)
https://github.com/lxc/incus/security/advisories/GHSA-mmj7-8rgf-mx2h

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