{"id":"EUVD-2026-78683","revision":"656a4e8502cd43fe94fc61a700ca2405","records":[{"revision":"656a4e8502cd43fe94fc61a700ca2405","observedAt":"2026-10-30T09:57:15.574+00:00","statement":{"source":"euvd","id":"EUVD-2026-78683","aliases":["CVE-2026-55770","GHSA-6mwx-4547-5vc9"],"title":"OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, OpenBao used EscapeLDAPValue, an RFC 4514 distinguished-name escaping function, where RFC 4515 LDAP search-filter escaping was required in sdk/helper/ldaput…","description":"OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, OpenBao used EscapeLDAPValue, an RFC 4514 distinguished-name escaping function, where RFC 4515 LDAP search-filter escaping was required in sdk/helper/ldaputil/client.go GetUserDN. With the LDAP authentication backend configured for an Active Directory UPNDomain path or UserDN and UserAttr binding, an attacker-controlled username containing filter metacharacters could alter the search predicate and select a different directory entry because EscapeLDAPValue does not neutralize the characters handled by ldap.EscapeFilter. A resulting token could be associated with another LDAP identity and gain access to secrets, policies, or modification capabilities assigned to that identity. This issue is fixed in version 2.5.5.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","score":6.8,"severity":null}],"references":["https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9","https://github.com/openbao/openbao/pull/3306","https://github.com/openbao/openbao/pull/3313","https://github.com/openbao/openbao/commit/10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659","https://github.com/openbao/openbao/commit/8077f96bdc02137b0a072146b6f9ca11c96c549c","https://github.com/openbao/openbao/releases/tag/v2.5.5","https://github.com/openbao/openbao/releases/tag/v2.6.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78683","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 15, 2026, 3:44:35 PM","dateUpdated":"Sep 17, 2026, 11:59:03 AM"},"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-2026-78683","identifiers":["EUVD-2026-78683","CVE-2026-55770","GHSA-6mwx-4547-5vc9"]},"retained":false,"historicalAffected":[]}],"coverage":[]}