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CVE-2026-112276

Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap

6.9 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Passive

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
High

Exploit likelihood

0.20%Unchanged since Oct 20, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.9

Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap

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.

Record
CVE-2026-112276
CVSS 4.0
6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2026-104297 6.9

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.

Record
EUVD-2026-104297
CVSS 4.0
6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-287f-cv9c-ggfj 6.9

Netpbm through 11.16.00 contains a heap out-of-bounds read vulnerability in rasttopnm that allows...

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.

Record
GHSA-287f-cv9c-ggfj
CVSS 4.0
6.9 MediumCVSS: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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
NVD 6.9

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.

Record
CVE-2026-112276
CVSS 4.0
6.9 MediumCVSS: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
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSVDEBIAN-CVE-2026-112276 6.9

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.

Record
DEBIAN-CVE-2026-112276
CVSS 4.0
6.9 MediumCVSS: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
Updated
2026-11-02
OSVUBUNTU-CVE-2026-112276 6.9

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.

Record
UBUNTU-CVE-2026-112276
CVSS 4.0
6.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Updated
2026-11-02
OSVAZL-109463 No score

CVE-2026-112276 affecting package netpbm 10.90.00-6

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.

Record
AZL-109463
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
netpbm
Azure Linux:3
 through 10.90.00-6 None known
netpbm-free
Debian:12
 All versions, plus listed versions
2:11.01.00-22:11.03.00-12:11.03.00-22:11.03.00-32:11.03.06-1
Show 33 moreShow less
2:11.04.05-12:11.04.05-22:11.05.01-12:11.05.01-22:11.05.01-32:11.05.02-12:11.05.02-1.12:11.05.02-1.1~exp12:11.05.03-12:11.06.00-12:11.06.01-12:11.06.01-22:11.07.00-12:11.07.00-22:11.07.01-12:11.08.00-12:11.08.01-12:11.08.02-12:11.09.02-12:11.09.02-22:11.09.03-12:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-12:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1
 None known
netpbm-free
Debian:13
 All versions, plus listed versions
2:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-1
Show 7 moreShow less
2:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1
 None known
netpbm-free
Debian:14
 All versions, plus listed versions
2:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-1
Show 7 moreShow less
2:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1
 None known
netpbm-free
Ubuntu:16.04:LTS
 All versions, plus listed versions
2:10.0-15.22:10.0-15.3
 None known
netpbm-free
Ubuntu:18.04:LTS
 All versions, plus listed versions
2:10.0-15.3build1
 None known
netpbm-free
Ubuntu:20.04:LTS
 All versions, plus listed versions
2:10.0-15.3build1
 None known
netpbm-free
Ubuntu:22.04:LTS
 All versions, plus listed versions
2:10.0-15.4
 None known
netpbm-free
Ubuntu:24.04:LTS
 All versions, plus listed versions
2:11.01.00-2build12:11.03.06-12:11.04.05-22:11.05.01-32:11.05.02-12:11.05.02-1.12:11.05.02-1.1build1
 None known
netpbm-free
Ubuntu:26.10
 All versions, plus listed versions
2:11.10.02-1build12:11.13.03+ds-2
 None known
netpbm-free
Ubuntu:26.04:LTS
 All versions, plus listed versions
2:11.10.02-1build1
 None known

History

History
RecordedChangedSources
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-112276 is a medium vulnerability (CVSS 6.9) in Netpbm, published October 19, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. No source names a fixed version.

References

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