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

MEDIUM 6.1CVE-2026-33812 · GO-2026-4962 · Published 21/04/2026 · updated 26/10/2026

In short

CVE-2026-33812 is a MEDIUM (CVSS 6.1) vulnerability affecting golang.org/x/image, image (golang).
Chance of exploitation in the next 30 days (EPSS): 0.11%, higher than 1.3% of all vulnerabilities.
Fix: update to 0.39.0 or later.

Package	Affected versions	Patched versions
golang.org/x/image Go	`< 0.39.0`	`0.39.0`
image golang	`< 0.39.0`	`0.39.0`

Parsing a malicious font file can cause excessive memory allocation.

NVD description

Parsing a malicious font file can cause excessive memory allocation.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

< 0.39.0

0.39.0

< 0.39.0

0.39.0

More vulnerabilities in golang.org/x/image

See all →