Vulnerability DatabaseCVE-2026-33580
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CVE-2026-33580
Published:March 31, 2026
Updated:April 23, 2026
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.
Affected Packages
openclaw (NPM):
Affected version(s) >=0.0.1 <2026.3.28
Fix Suggestion:
Update to version 2026.3.28
openclaw (NPM):
Affected version(s) >=0.0.1 <2026.3.28
Fix Suggestion:
Update to version 2026.3.28
Related Resources (6)
https://github.com/openclaw/openclaw/security/advisories/GHSA-9528-x887-j2fp
https://github.com/openclaw/openclaw/commit/e403decb6e20091b5402780a7ccd2085f98aa3cd
https://github.com/openclaw/openclaw/releases/tag/v2026.3.28
https://nvd.nist.gov/vuln/detail/CVE-2026-33580
https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-rate-limiting-on-webhook-shared-secret-authentication
https://github.com/openclaw/openclaw
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Restriction of Excessive Authentication Attempts
CWE-307
EPSS
Base Score:
0.08