← CVE Intelligence

CVE-2026-55770

OpenBao: LDAPi ldaputil (wrong escape func) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
openbao / openbaoaffected < 2.5.5

CWE

CWE-90

References

ADP enrichment

CISA-ADP

No English description supplied.