Vulnerability in Openclaw
CVE-2026-44118
OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (4.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Openclaw — versions 0, 2026.4.22
Weakness classification (CWE)
References
- Patch Commit (Patch, patch)
- GitHub Security Advisory (GHSA-r6xh-pqhr-v4xh) (vendor-advisory, Mitigation, Vendor Advisory)
- VulnCheck Advisory: OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-44118?
- CVE-2026-44118 is a high-severity vulnerability in Openclaw, classified under Authentication Bypass by Spoofing. CVSS score: 7.8/10. Published 2026-05-06.
- How severe is CVE-2026-44118?
- High severity. CVSS v3 base score is 7.8 out of 10.