Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck
CVE-2026-41334OpenClaw < 2026.3.31 - Decompression Bomb Denial of Service via Image Pixel-Limit Guard Bypass
Medium 6.5
In plain English
A medium-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 75.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
OpenClaw before 2026.3.31 contains a decompression bomb vulnerability in image processing that fails to properly enforce pixel-limit guards on sips. Attackers can exploit this by uploading oversized images to cause denial of service through excessive memory consumption.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | openclaw | 2026.3.31 | GHSA-w85g-3h6x-4xh2 |
Affected products (as reported)
Weakness: CWE-636 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-w85g-3h6x-4xh2) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: OpenClaw < 2026.3.31 - Decompression Bomb Denial of Service via Image Pixel-Limit Guard Bypass third-party-advisory