{"id":"EUVD-2026-83955","revision":"ff970cbcc9444dc992a820cc455afa52","records":[{"revision":"ff970cbcc9444dc992a820cc455afa52","observedAt":"2026-10-28T09:36:31.932+00:00","statement":{"source":"euvd","id":"EUVD-2026-83955","aliases":["CVE-2026-71543","GHSA-59w7-v8rr-pr4p"],"title":"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 po…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"references":["https://github.com/openbao/openbao/security/advisories/GHSA-59w7-v8rr-pr4p","https://github.com/openbao/openbao/pull/3401","https://github.com/openbao/openbao/pull/3473","https://github.com/openbao/openbao/commit/2d4ebafec5c524408b3d4ac1198df909cb7ac8c1","https://github.com/openbao/openbao/commit/e516ce508e1481504cadbfbf62052364339093bc","https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#201","https://github.com/openbao/openbao/releases/tag/v2.6.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-83955","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 21, 2026, 3:03:59 PM","dateUpdated":"Sep 25, 2026, 7:26:50 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-83955","identifiers":["EUVD-2026-83955","CVE-2026-71543","GHSA-59w7-v8rr-pr4p"]},"retained":false,"historicalAffected":[]}],"coverage":[]}