What is CVE-2026-33813?

CVE-2026-33813 is a high-severity vulnerability in Golang Image, classified under CWE-190: INTEGER OVERFLOW OR WRAPAROUND. CVSS score: 7.5/10. Published 2026-04-21.

How severe is CVE-2026-33813?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Golang Image

CVE-2026-33813

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

EPSS: 0.001 (21.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Golang Image
Golang.org/x/image Golang.org/x/image/webp — versions 0

References

security@golang.org (Patch)
security@golang.org (Issue Tracking)
security@golang.org (Vendor Advisory)

Frequently asked questions

What is CVE-2026-33813?: CVE-2026-33813 is a high-severity vulnerability in Golang Image, classified under CWE-190: INTEGER OVERFLOW OR WRAPAROUND. CVSS score: 7.5/10. Published 2026-04-21.
How severe is CVE-2026-33813?: High severity. CVSS v3 base score is 7.5 out of 10.