CVE-2026-33580 - Vulnerability Analysis
CriticalCVSS: 9.8Last Updated: March 31, 2026
OpenClaw - Authentication Bypass
Overview
OpenClaw < 2026.3.28 contains a missing rate limiting vulnerability in Nextcloud Talk webhook authentication, letting attackers brute-force weak shared secrets and forge inbound webhook events, exploit requires access to webhook endpoint.
Severity & Score
Impact
Attackers can brute-force shared secrets to forge inbound webhook events, potentially leading to unauthorized actions or data manipulation.
Mitigation
Update to version 2026.3.28 or later.
References
Social Media Activity(2 posts)
š“ CVE-2026-33580 - Critical (9.8) 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 ... š https://www.thehackerwire.com/vulnerability/CVE-2026-33580/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack
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š“ CVE-2026-33580 - Critical (9.8) 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 ... š https://www.thehackerwire.com/vulnerability/CVE-2026-33580/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack
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Details
- CVE ID
- CVE-2026-33580
- Severity
- Critical
- CVSS Score
- 9.8
- Type
- broken_authentication
- Status
- new
- EPSS
- 0.0%
- Social Posts
- 2
CWE
- CWE-307
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H