Advisory details:
github_osv / GHSA-5m9r-p9g7-679c
| Advisory ID | github_osv/GHSA-5m9r-p9g7-679c |
| Aliases |
CVE-2026-34505
|
| Summary | OpenClaw: Zalo webhook rate limiting could be bypassed before secret validation ### Summary The Zalo webhook handler applied request rate limiting only after webhook authentication succeeded. Requests with an invalid secret returned `401` but did not count against the rate limiter, allowing repeated secret guesses without triggering `429`. ### Impact This made brute-force guessing materially easier for weak but policy-compliant webhook secrets. Once the secret was guessed, an attacker could submit forged Zalo webhook traffic. ### Affected versions `openclaw` `<= 2026.3.11` ### Patch Fixed in `openclaw` `2026.3.12`. Rate limiting now applies before successful authentication is required, closing the pre-auth brute-force gap. Users should update to `2026.3.12` or later and prefer strong webhook secrets. |
| 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 |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 6.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5m9r-p9g7-679c/GHSA-5m9r-p9g7-679c.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/openclaw/openclaw | ||
| https://github.com/openclaw/openclaw/commit/f96ba87f033a14183fa0ede912df3a592eef55ff | ||
| https://github.com/openclaw/openclaw/pull/44173 | ||
| https://github.com/openclaw/openclaw/releases/tag/v2026.3.12 | ||
| CVE-2026-34505 | https://nvd.nist.gov/vuln/detail/CVE-2026-34505 | |
| GHSA-5m9r-p9g7-679c | Advisory | https://github.com/openclaw/openclaw/security/advisories/GHSA-5m9r-p9g7-679c |
| openclaw-webhook-rate-limiting-bypass-via-pre-authentication-secret-validation | Advisory | https://www.vulncheck.com/advisories/openclaw-webhook-rate-limiting-bypass-via-pre-authentication-secret-validation |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| 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 |
Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-31T13:53:27Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/34xxx/CVE-2026-34505.json
Source Advisory: vulnrichment/CVE-2026-34505
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]