CVE-2026-46601

Panic on VP8 alpha channel size mismatch in x/image/webp in golang.org/x/image

State: Published
Severity: 7.5 High
Published: Jun 25, 2026
Updated: Jun 26, 2026
Reserved: May 15, 2026

Description

The webp decoder can panic when processing a VP8 chunk with dimensions that do not match the canvas size.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
golang.org/x/image/webpgolang.org/x/image	before 0.43.0Affected
golang.org/x/image/webpgolang.org/x/image	before 0.43.0Affected

References

https://go.dev/cl/787681
https://go.dev/issue/79869
https://pkg.go.dev/vuln/GO-2026-5061

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