CVE-2026-35633mediumCWE-789

CVE-2026-35633: medium-severity vulnerability in OpenClaw

OpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses

Published · Updated

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.7%
exploitation probability
0.7%top 50% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
OpenClaw · OpenClaw
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In the same product, most dangerous first.

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References
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438https://github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcwhttps://www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responses