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Advisory severityHigh7.3Vendor: MediumRed Hat Linux

High [CVE-2026-58380] stack buffer overflow in pnmscanner_gettoken

This high-severity Red Hat Linux advisory covers CVE-2026-58380 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-58380 Source published Source updated

VulniPulse record published

CVE-2026-58380
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pnmscanner_gettoken() function writes a null terminator one byte past the end of a stack-allocated buffer due to an off-by-one error in the loop boundary check.

This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution. The vulnerability requires a user to open a specially crafted PNM image file with GIMP.

As a desktop application, the impact is limited to the user's session and requires user interaction. Red Hat severity: Moderate — CVSS 7.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

Weakness: CWE-193. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.

Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat fixing advisory: RHSA-2026:62507, RHSA-2026:40751, RHSA-2026:80509, RHSA-2026:73768.

Affected products named by the advisory: Red Hat package: gimp.

Is CVE-2026-58380 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-58380 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-58380?

Upgrade to a fixed release named by Red Hat:

  • gimp:2.8-8100020260824165450.4c9c024f
  • gimp-2:3.0.4-4.el9_8.7
  • gimp-2:2.99.8-4.el9_4.19
  • gimp-2:2.99.8-4.el9_6.20
  • RHSA-2026:62507
  • RHSA-2026:40751
  • RHSA-2026:80509
  • RHSA-2026:73768

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions
  • gimp:2.8-8100020260824165450.4c9c024f
  • gimp-2:3.0.4-4.el9_8.7
  • gimp-2:2.99.8-4.el9_4.19
  • gimp-2:2.99.8-4.el9_6.20
  • RHSA-2026:62507
  • RHSA-2026:40751
  • RHSA-2026:80509
  • RHSA-2026:73768

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • None — requires opening a crafted PNM file.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

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