{"cve":"CVE-2026-71543","nvd":{"published":"2026-09-21T15:17:31.173","modified":"2026-09-25T20:17:46.773","status":"Awaiting Analysis","description":"OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated policies, asterisks, plus signs, and slashes could alter path matching. In PKI allowed_uri_sans_template and allowed_domains policies, an asterisk could broaden certificate issuance to unauthorized domains. In SSH allowed_users and allowed_domains policies, a comma could add unauthorized principals. Exploitation requires a deployment to use templated policy data that users can freely modify; templates based on the randomly generated identity.entity.id value are not affected. This could allow privilege escalation, unauthorized access, and unauthorized certificate issuance. This issue is fixed in version 2.6.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.5},"cvss_v3":null,"cwes":["CWE-863"],"references":["https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#201","https://github.com/openbao/openbao/commit/2d4ebafec5c524408b3d4ac1198df909cb7ac8c1","https://github.com/openbao/openbao/commit/e516ce508e1481504cadbfbf62052364339093bc","https://github.com/openbao/openbao/pull/3401","https://github.com/openbao/openbao/pull/3473"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-71543","score":0.00421,"percentile":0.36486,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-59w7-v8rr-pr4p","url":"https://osv.dev/vulnerability/GHSA-59w7-v8rr-pr4p","summary":" OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters","modified":"2026-10-01T20:55:48.582867357Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20260710001938-2d4ebafec5c5"],"fixed":["0.0.0-20260710001938-2d4ebafec5c5"]},{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":[">=0.1.0 <=1.1.5"],"fixed":[]}]},{"id":"GO-2026-6556","url":"https://osv.dev/vulnerability/GO-2026-6556","summary":"OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters in github.com/openbao/openbao","modified":"2026-10-01T20:55:48.582867357Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20260710001938-2d4ebafec5c5",">=0.1.0"],"fixed":["0.0.0-20260710001938-2d4ebafec5c5"]}]}],"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."]}