CVE-2026-112276: Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap
Vulnerability summary
CVE-2026-112276 is a medium (CVSS 6.9) Out-of-bounds Read vulnerability in netpbm. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 8.9% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 19-10-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 2 sources · 2 versions- NVDNIST6.9MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (hackmd.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- netpbm-freeAll versions (No fix recorded)
Netpbm1 product
- netpbm≤ 11.16.00
2 vendors · 2 products
References
7 links- hackmd.io/@haindpwn/netpbm-sunraster-rle-oob-write-palette-oob-readThird Party Advisory
- sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rasttopnm.cTechnical Description
- sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rast.cTechnical Description
- netpbm.sourceforge.netProduct
