Vulnerability in golang.org/x/image (CVE-2026-33813)
Summary
Vulnerability in golang.org/x/image (CVE-2026-33813). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 0.42.0 or later.
Original description
The description as published by the source.
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2026-33813 was discovered in golang.org/x/image.
Severity is High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "golang.org/x/image CVE-2026-33813".
CVE-2026-33813 (golang.org/x/image). Severity: High / CVSSv3 7.5.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2026-33813) in golang.org/x/image. A serious software flaw has been identified.
Target versions of golang.org/x/image (see vendor advisory). If running in production, identify exposure immediately.
Severity: High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
Update to the patched release as listed in the vendor advisory.
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-33813 golang-golang-x-image
- Ubuntu UBUNTU-CVE-2026-33813 golang-golang-x-image
References
- advisory github.com
- advisory nvd.nist.gov
- web go.dev
- web go.dev
- web pkg.go.dev
- web go.dev
- web pkg.go.dev