CVE-2026-42144
Description
CImg Library is a C++ library for image processing. Prior to commit 4ca26bc, there is an integer overflow vulnerability in the W*H*D size computation inside _load_pnm() that can bypass the memory allocation guard. A crafted PNM/PGM/PPM file with large dimension values causes the overflow to wrap around, allocating an undersized buffer and potentially triggering a heap buffer overflow. Any application using CImg to load untrusted image files is affected. This issue has been patched via commit 4ca26bc.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | fixed | 3.5.2+dfsg-2 |
| debian | sid | fixed | 3.5.2+dfsg-2 |
| debian | trixie | fixed | 3.5.2+dfsg-1+deb13u1 |
References
- https://github.com/GreycLab/CImg/commit/4ca26bce4d8c61fcd1507d5f9401b9fb1222c27d
- https://github.com/GreycLab/CImg/issues/478
- https://github.com/GreycLab/CImg/releases/tag/v.3.7.5
- https://github.com/GreycLab/CImg/security/advisories/GHSA-4663-63fm-44gc
- https://security-tracker.debian.org/tracker/CVE-2026-42144
CWEs
CWE-190
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.