CVE-2026-33813: Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image
Published Apr 21, 2026
·Updated
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
Affected Software
2 affected components
golang.org/x/image
Golang Image Go<0.39.0
Remediation
Patch Available
Event History
Apr 21, 2026
CVE Published
via MITRE·07:21 PM
Data Sourced
via MITRE·07:21 PM
DescriptionWeakness
Data Sourced
via Red Hat·08:01 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·08:16 PM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-33813?
CVE-2026-33813 has been classified as a high severity vulnerability due to its potential to cause application crashes on 32-bit platforms.
2
How do I fix CVE-2026-33813?
To fix CVE-2026-33813, you must upgrade to the latest version of the golang.org/x/image library that addresses this vulnerability.
3
What systems are affected by CVE-2026-33813?
CVE-2026-33813 affects 32-bit platforms running the golang.org/x/image library that attempts to decode large or invalid WEBP images.
4
What happens if I don't address CVE-2026-33813?
If CVE-2026-33813 is not addressed, applications could panic or crash when processing large WEBP images, leading to potential downtime.
5
Is CVE-2026-33813 a remote code execution vulnerability?
No, CVE-2026-33813 is not a remote code execution vulnerability; it primarily results in application crashes.