mediumCVSS 4.8Vulnerability
GHSA-59xc-5v89-r7pr
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mf5g-6r6f-ghhm. This link is maintained to preserve external references. ### Original Description OpenClaw before 2026.3.25 contains a pre-authentication rate-limit bypass vulnerability in webhook token validation that allows attackers to brute-force weak webhook secrets. The vulnerability exists because invalid webhook tokens are rejected without throttling repeated authentication attempts, enabling attackers to guess weak tokens through rapid successive requests.
Properties
- ghsa_id
- GHSA-59xc-5v89-r7pr
- severity
- medium
- summary
- Duplicate Advisory: OpenClaw: Synology Chat Webhook Pre-Auth Rate-Limit Bypass Enables Brute-Force Guessing of Webhook Token
- cvss_score
- 4.8
- cve_id
- GHSA-59xc-5v89-r7pr
- cvss_vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- is_ghsa_only
- true
- ghsa_published
- 2026-04-10T00:30:30Z
- source_url
- https://github.com/advisories/GHSA-59xc-5v89-r7pr
- ghsa_updated
- 2026-04-10T20:25:03Z
Related Entities (4)
VULNERABLE_TO (1)
←[Software]npm/OpenClaw
AFFECTS (1)
→[Software]npm/OpenClaw
REPORTED_BY (1)
→[Source]GitHub Advisory Database
HAS_WEAKNESS (1)
→[Weakness]Improper Restriction of Excessive Authentication Attempts
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