CVE-2026-33813

Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image

State: Published
Severity: 7.5 High
Published: Apr 21, 2026
Updated: Jun 25, 2026
Reserved: Mar 23, 2026

Description

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

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 0.42.0Affected

References

https://go.dev/cl/759860
https://go.dev/cl/780860
https://go.dev/issue/78407
https://pkg.go.dev/vuln/GO-2026-4961

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