Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-36cp-mh65-x882
Advisory ID github_osv/GHSA-36cp-mh65-x882
Aliases
Summary Duplicate Advisory: OpenClaw is vulnerable to unauthenticated resource exhaustion through its voice call webhook handling ### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rm59-992w-x2mv. This link is maintained to preserve external references. ### Original Description 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-405 Asymmetric Resource Consumption (Amplification)
System Score Found at
cvssv3.1 5.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-36cp-mh65-x882/GHSA-36cp-mh65-x882.json
cvssv4 6.9 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-36cp-mh65-x882/GHSA-36cp-mh65-x882.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw/commit/651dc7450b68a5396a009db78ef9382633707ead
https://github.com/openclaw/openclaw/security/advisories/GHSA-rm59-992w-x2mv
https://www.vulncheck.com/advisories/openclaw-unauthenticated-resource-exhaustion-via-voice-call-webhook
630f1479c44f78484dfa21bb407cbe6f171dac87 Other https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
CVE-2026-35626 https://nvd.nist.gov/vuln/detail/CVE-2026-35626
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-36cp-mh65-x882/GHSA-36cp-mh65-x882.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-36cp-mh65-x882/GHSA-36cp-mh65-x882.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.