CVE-2026-33812

Excessive memory allocation when decoding malicious SFNT in golang.org/x/image

State: Published
Severity: 6.1 Medium
Published: Apr 21, 2026
Updated: Apr 21, 2026
Reserved: Mar 23, 2026

Description

Parsing a malicious font file can cause excessive memory allocation.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
golang.org/x/image/font/sfntgolang.org/x/image	before 0.39.0Affected

References

https://go.dev/cl/761180
https://go.dev/issue/78382
https://pkg.go.dev/vuln/GO-2026-4962

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