CVE-2026-33813: CWE-190: Integer Overflow or Wraparound in golang.org/x/image golang.org/x/image/webp
CVE-2026-33813 is a high-severity vulnerability in the golang. org/x/image/webp package where parsing a WEBP image with an invalid, large size causes a panic on 32-bit platforms. This is due to an integer overflow or wraparound (CWE-190). The vulnerability impacts availability but does not affect confidentiality or integrity. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound condition in the golang.org/x/image/webp package when parsing WEBP images with invalid, large sizes on 32-bit platforms. The overflow leads to a panic, which can cause a denial of service by crashing the application processing the image. The CVSS score is 7.5, reflecting a network attack vector with no privileges required and no user interaction, impacting availability only. No vendor advisory or patch information is currently provided.
Potential Impact
The vulnerability can cause denial of service on 32-bit platforms by crashing applications that parse specially crafted WEBP images with invalid large sizes. There is no impact on confidentiality or integrity. No known exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting or validating WEBP image inputs on 32-bit platforms to prevent processing of potentially malicious images that could trigger the panic.
CVE-2026-33813: CWE-190: Integer Overflow or Wraparound in golang.org/x/image golang.org/x/image/webp
Description
CVE-2026-33813 is a high-severity vulnerability in the golang. org/x/image/webp package where parsing a WEBP image with an invalid, large size causes a panic on 32-bit platforms. This is due to an integer overflow or wraparound (CWE-190). The vulnerability impacts availability but does not affect confidentiality or integrity. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound condition in the golang.org/x/image/webp package when parsing WEBP images with invalid, large sizes on 32-bit platforms. The overflow leads to a panic, which can cause a denial of service by crashing the application processing the image. The CVSS score is 7.5, reflecting a network attack vector with no privileges required and no user interaction, impacting availability only. No vendor advisory or patch information is currently provided.
Potential Impact
The vulnerability can cause denial of service on 32-bit platforms by crashing applications that parse specially crafted WEBP images with invalid large sizes. There is no impact on confidentiality or integrity. No known exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting or validating WEBP image inputs on 32-bit platforms to prevent processing of potentially malicious images that could trigger the panic.
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: 4/29/2026, 11:17:45 AM
Last updated: 6/6/2026, 6:53:37 AM
Views: 65
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