CVE-2026-112276 Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap
Attackers can leak heap memory or crash the application by providing crafted Sun rasterfiles to the rasttopnm utility in Netpbm.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112276?
CVE-2026-112276 is a medium-severity vulnerability in Netpbm, published on 19 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Netpbm through 11.16.00 contains a heap out-of-bounds read vulnerability in rasttopnm that allows attackers to read heap memory by supplying Sun rasterfiles with short colormaps. Attackers can craft colormapped rasterfiles with pixel bytes exceeding the palette length to leak up to 255 adjacent heap bytes into the PNM output or crash the program.
Weakness: CWE-125
Which versions are affected by CVE-2026-112276?
How do I fix CVE-2026-112276?
No fix has been published for CVE-2026-112276 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112276 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112276 exists.
Sources
Also known as AZL-109463, DEBIAN-CVE-2026-112276, GHSA-287f-cv9c-ggfj, UBUNTU-CVE-2026-112276.