🛡️ CVE-2026-42500 — image

🟡 CVSS 5.3 — Medium ✅ No Known Exploit NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Panic when reading out of bound palette index in golang.org/x/image/bmp

Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Affected software

CVE-2026-42500 is recorded against 2 packages.

  • golang.org/x/image
  • unknown

Timeline and source

Published on 29 May 2026 and last revised on 16 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

go.dev (Report)
groups.google.com (Web)
go.dev (Fix)

CVE-2026-42500 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-05-29
Updated 2026-08-12
Modified 2026-06-16

Affected Packages

Software From version Fixed in
golang.org/x/image — —
unknown — —

Similar Threats

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