CVE-2026-42500

MEDIUM

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

Title source: cna
STIX 2.1

Description

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

References (4)

Core 4

Scores

CVSS v3 5.3
EPSS 0.0038
EPSS Percentile 30.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

Status published
Products (1)
golang.org/x/image/golang.org/x/image/bmp < 0.41.0
Published May 29, 2026
Tracked Since May 30, 2026