{"cve":"CVE-2026-44118","nvd":{"published":"2026-05-06T20:16:35.900","modified":"2026-06-17T10:50:17.423","status":"Analyzed","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-290"],"references":["https://github.com/openclaw/openclaw/commit/3cb1a56bfc9579a0f2336f9cfa12a8a744332a19","https://github.com/openclaw/openclaw/security/advisories/GHSA-r6xh-pqhr-v4xh","https://www.vulncheck.com/advisories/openclaw-owner-context-spoofing-via-bearer-token-header"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-44118","score":0.00135,"percentile":0.02939,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-r6xh-pqhr-v4xh","url":"https://osv.dev/vulnerability/GHSA-r6xh-pqhr-v4xh","summary":"OpenClaw: MCP loopback owner context is derived from server-issued bearer tokens","modified":"2026-05-12T17:26:29.030919Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.4.22"],"fixed":["2026.4.22"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}