{"cve":"CVE-2026-28476","nvd":{"published":"2026-03-05T22:16:21.807","modified":"2026-06-17T10:28:43.030","status":"Analyzed","description":"OpenClaw versions prior to 2026.2.14 contain a server-side request forgery vulnerability in the optional Tlon Urbit extension that accepts user-provided base URLs for authentication without proper validation. Attackers who can influence the configured Urbit URL can induce the gateway to make HTTP requests to arbitrary hosts including internal addresses.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L","score":6.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","score":5.8},"cwes":["CWE-918"],"references":["https://github.com/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1","https://github.com/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc","https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-28476","score":0.00281,"percentile":0.20611,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pg2v-8xwh-qhcc","url":"https://osv.dev/vulnerability/GHSA-pg2v-8xwh-qhcc","summary":"OpenClaw affected by SSRF in optional Tlon (Urbit) extension authentication","modified":"2026-05-05T15:56:02.684379Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.2.14"],"fixed":["2026.2.14"]}]}],"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."]}