Vulnerability Description
OpenClaw before 2026.3.28 contains a missing rate limiting vulnerability in the Nextcloud Talk webhook authentication that allows attackers to brute-force weak shared secrets. Attackers who can reach the webhook endpoint can exploit this to forge inbound webhook events by repeatedly attempting authentication without throttling.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.3.28 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/e403decb6e20091b5402780a7ccd2085f98aPatch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-9528-x887-j2fpVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-ratThird Party Advisory
FAQ
What is CVE-2026-33580?
CVE-2026-33580 is a vulnerability with a CVSS score of 6.5 (MEDIUM). OpenClaw before 2026.3.28 contains a missing rate limiting vulnerability in the Nextcloud Talk webhook authentication that allows attackers to brute-force weak shared secrets. Attackers who can reach ...
How severe is CVE-2026-33580?
CVE-2026-33580 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33580?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.