{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55770", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T14:34:51.881Z", "datePublished": "2026-09-15T15:44:35.898Z", "dateUpdated": "2026-09-15T16:41:35.358Z"}, "containers": {"cna": {"title": "OpenBao: LDAPi ldaputil (wrong escape func)", "problemTypes": [{"descriptions": [{"cweId": "CWE-90", "lang": "en", "description": "CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9"}, {"name": "https://github.com/openbao/openbao/pull/3306", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/pull/3306"}, {"name": "https://github.com/openbao/openbao/pull/3313", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/pull/3313"}, {"name": "https://github.com/openbao/openbao/commit/10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/commit/10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659"}, {"name": "https://github.com/openbao/openbao/commit/8077f96bdc02137b0a072146b6f9ca11c96c549c", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/commit/8077f96bdc02137b0a072146b6f9ca11c96c549c"}, {"name": "https://github.com/openbao/openbao/releases/tag/v2.5.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/releases/tag/v2.5.5"}, {"name": "https://github.com/openbao/openbao/releases/tag/v2.6.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"}], "affected": [{"vendor": "openbao", "product": "openbao", "versions": [{"version": "< 2.5.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T15:44:35.898Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-6mwx-4547-5vc9", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-15T16:40:19.438513Z", "id": "CVE-2026-55770", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-15T16:41:35.358Z"}}]}}

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{"affected": [{"affectedData": [{"product": "openbao", "vendor": "openbao", "versions": [{"status": "affected", "version": "< 2.5.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-55770", "lastModified": "2026-09-15T16:17:15.763", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T16:17:15.763", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/commit/10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/commit/8077f96bdc02137b0a072146b6f9ca11c96c549c"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/pull/3306"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/pull/3313"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/releases/tag/v2.5.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-90"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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