CVE-2026-35633

OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. Attackers can send crafted HTTP error responses with large bodies to remote media endpoints, causing the application to allocate unbounded memory before failure handling occurs.

Score

CVSS 4.0 6.9 Medium

Status

Analyzed - disclosure@vulncheck.com

Published

2026-04-09

Last modified

2026-06-23

Weaknesses

CWE-770, CWE-789

Affected products

• Openclaw (Openclaw)

References

• https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
• https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438
• https://github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcw
• https://www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responses