Vulnerability DatabaseCVE-2026-53839
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CVE-2026-53839
Published:June 12, 2026
Updated:June 29, 2026
OpenClaw before 2026.5.7 contains a hostname validation vulnerability in retry endpoint checks that allows matching hostname prefixes instead of exact hostnames. Attackers can exploit this by crafting a hostname prefix resembling a trusted host to send authentication material to untrusted endpoints.
Affected Packages
openclaw (NPM):
Affected version(s) >=0.0.1 <2026.5.7
Fix Suggestion:
Update to version 2026.5.7
Related Resources (2)
https://github.com/openclaw/openclaw/security/advisories/GHSA-77q5-rr5v-x43q
https://www.vulncheck.com/advisories/openclaw-hostname-prefix-matching-bypass-in-trusted-retry-endpoint-validation
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CVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
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
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incomplete Comparison with Missing Factors
CWE-1023
EPSS
Base Score:
0.27