CVE-2026-34505 json
OpenClaw < 2026.3.12 - Webhook Rate Limiting Bypass via Pre-Authentication Secret Validation
published 2026-03-13 7 mo ago modified 2026-07-24 3 mo ago also GHSA-5m9r-p9g7-679c , EUVD-2026-17389
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.3.12 applies rate limiting only after successful webhook authentication, allowing attackers to bypass rate limits and brute-force webhook secrets. Attackers can submit repeated authentication requests with invalid secrets without triggering rate limit responses, enabling systematic secret guessing and subsequent forged webhook submission.
Patch / fix
- npm openclaw 2026.3.12
- OpenClaw OpenClaw 2026.3.12
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.3.12 |
2026.3.12 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-307 Improper Restriction of Excessive Authentication Attempts
References
-
github.com
/openclaw/openclaw/pull/44173
web
-
github.com
/openclaw/openclaw/commit/f96ba87f033a14183fa0ede912df3a592eef55ff
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-5m9r-p9g7-679c
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-webhook-rate-limiting-bypass-via-pre-authentication-secret-validation
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-34505
advisory
-
github.com
/openclaw/openclaw
package
-
github.com
/openclaw/openclaw/releases/tag/v2026.3.12
web
Sources
- CVE List CVE-2026-34505
- GitHub Advisory GHSA-5m9r-p9g7-679c
- NVD CVE-2026-34505
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