CVE-2026-33813: CWE-190: Integer Overflow or Wraparound in golang.org/x/image golang.org/x/image/webp
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound (CWE-190) in the golang.org/x/image/webp package. When a WEBP image with an invalidly large size is parsed on 32-bit platforms, the process panics due to improper size handling. The issue is specific to the image parsing logic and can cause application crashes. No CVSS score or patch information is currently provided, and no known exploits have been reported.
Potential Impact
The impact is limited to causing a panic (crash) when parsing specially crafted WEBP images with invalid large sizes on 32-bit platforms. This could lead to denial of service in applications using this library for image processing. There is no evidence of code execution or data corruption from the available information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider avoiding processing untrusted WEBP images on 32-bit platforms or implement additional input validation to prevent large size values. Monitor official golang.org/x/image project communications for updates.
CVE-2026-33813: CWE-190: Integer Overflow or Wraparound in golang.org/x/image golang.org/x/image/webp
Description
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound (CWE-190) in the golang.org/x/image/webp package. When a WEBP image with an invalidly large size is parsed on 32-bit platforms, the process panics due to improper size handling. The issue is specific to the image parsing logic and can cause application crashes. No CVSS score or patch information is currently provided, and no known exploits have been reported.
Potential Impact
The impact is limited to causing a panic (crash) when parsing specially crafted WEBP images with invalid large sizes on 32-bit platforms. This could lead to denial of service in applications using this library for image processing. There is no evidence of code execution or data corruption from the available information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider avoiding processing untrusted WEBP images on 32-bit platforms or implement additional input validation to prevent large size values. Monitor official golang.org/x/image project communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Go
- Date Reserved
- 2026-03-23T20:35:32.814Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e7d08919fe3cd2cdf3fb0b
Added to database: 4/21/2026, 7:31:21 PM
Last enriched: 4/21/2026, 7:47:34 PM
Last updated: 4/22/2026, 7:15:25 AM
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.