CVE-2026-35626: medium-severity vulnerability in OpenClaw
OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.5%
OpenClaw before 2026.3.22 contains an unauthenticated resource exhaustion vulnerability in voice call webhook handling that buffers request bodies before provider signature checks. Attackers can send large or malicious webhook requests to exhaust server resources without authentication by bypassing signature validation.
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 · OpenClawRelated CVEs — OpenClaw
In the same product, most dangerous first.
CVE-2026-25253HIGHCVE-2026-25253EPSS 32.4%CVE-2026-44112HIGHOpenClaw < 2026.4.22 - Symlink Swap Race Condition in OpenShell FS Bridge WritesEPSS 7.3%CVE-2026-32917CRITICALOpenClaw < 2026.3.13 - Remote Command Injection via Unsanitized iMessage Attachment Paths in SCPEPSS 2.0%CVE-2026-3689MEDIUMOpenClaw Canvas Path Traversal Information Disclosure VulnerabilityEPSS 1.2%CVE-2026-53822HIGHOpenClaw < 2026.5.18 - Command Argument Modification via Shell Wrapper Between Approval and ExecutionEPSS 1.1%CVE-2026-32052MEDIUMOpenClaw < 2026.2.24 - Hidden Command Execution via Shell-Wrapper Positional argv CarriersEPSS 1.0%
References
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87https://github.com/openclaw/openclaw/commit/651dc7450b68a5396a009db78ef9382633707eadhttps://github.com/openclaw/openclaw/security/advisories/GHSA-rm59-992w-x2mvhttps://www.vulncheck.com/advisories/openclaw-unauthenticated-resource-exhaustion-via-voice-call-webhook