Medium
OpenClaw < 2026.5.7 - Hostname Prefix Matching Bypass in Trusted Retry Endpoint Validation
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.
Announced Group revision 1
Original source ↗CVE-2026-53839
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53839
OpenClaw
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/openclaw/openclaw",
"vendor": "OpenClaw",
"product": "OpenClaw",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2026.5.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2026.5.7",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/openclaw",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-53839
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #12747 · Revision 1
- Added to Heist Feed
- Publisher date