CVE-2026-40335

NameCVE-2026-40335
Descriptionlibgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_DPV()` in `camlibs/ptp2/ptp-pack.c` (lines 622–629). The UINT128 and INT128 cases advance `*offset += 16` without verifying that 16 bytes remain in the buffer. The entry check at line 609 only guarantees `*offset < total` (at least 1 byte available), leaving up to 15 bytes unvalidated. Commit 433bde9888d70aa726e32744cd751d7dbe94379a patches the issue.
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
libgphoto2 (PTS)bullseye2.5.27-1vulnerable
bookworm2.5.30-1vulnerable
trixie2.5.31-4vulnerable
forky, sid2.5.33-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libgphoto2source(unstable)(unfixed)

Notes

https://github.com/gphoto/libgphoto2/security/advisories/GHSA-g4g5-c2x9-cqfj
https://github.com/gphoto/libgphoto2/commit/433bde9888d70aa726e32744cd751d7dbe94379a

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