CVE-2026-55770
- Source
- https://cve.org/CVERecord?id=CVE-2026-55770
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55770.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-55770
- Aliases
- Downstream
- Related
- Published
- 2026-09-15T15:44:35Z
- Modified
- 2026-10-16T02:34:35Z
- Severity
-
- 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- OpenBao: LDAPi ldaputil (wrong escape func)
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-90" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55770.json" }- References
-
- https://github.com/openbao/openbao/releases/tag/v2.5.5
- https://github.com/openbao/openbao/releases/tag/v2.6.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55770.json
- https://github.com/openbao/openbao/security/advisories/GHSA-6mwx-4547-5vc9
- https://nvd.nist.gov/vuln/detail/CVE-2026-55770
- https://github.com/openbao/openbao/commit/10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659
- https://github.com/openbao/openbao/commit/8077f96bdc02137b0a072146b6f9ca11c96c549c
- https://github.com/openbao/openbao/pull/3306
- https://github.com/openbao/openbao/pull/3313
Affected packages
Git / github.com/openbao/openbao
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openbao/openbao
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "2.5.5" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "10b7825c714c1ef25b6c3c1c2cd6ecd8747c0659" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "8077f96bdc02137b0a072146b6f9ca11c96c549c" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v2.5.5", "range": [ { "fixed": "028992583c693c4de6350b8aa52ff85e30375a99" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v2.6.0", "range": [ { "fixed": "03e3a243b6f07d17c60ce0a182adee7cf4c424eb" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
api/auth/approle/v0.*
api/auth/approle/v0.1.0
api/auth/approle/v0.1.1
api/auth/approle/v0.2.0
api/auth/approle/v0.3.0
api/auth/approle/v0.4.0
api/auth/approle/v0.4.1
api/auth/approle/v1.*
api/auth/approle/v1.1.0-development20240408
api/auth/approle/v2.*
api/auth/approle/v2.0.1
api/auth/approle/v2.2.0
api/auth/approle/v2.3.0
api/auth/approle/v2.4.0
api/auth/approle/v2.5.0
api/auth/approle/v2.5.1
api/auth/aws/v0.*
api/auth/aws/v0.1.0
api/auth/aws/v0.2.0
api/auth/aws/v0.3.0
api/auth/aws/v0.4.0
api/auth/aws/v0.4.1
api/auth/aws/v1.*
api/auth/aws/v1.1.0-development20240408
api/auth/azure/v0.*
api/auth/azure/v0.1.0
api/auth/azure/v0.2.0
api/auth/azure/v0.3.0
api/auth/azure/v0.4.0
api/auth/azure/v0.4.1
api/auth/azure/v1.*
api/auth/azure/v1.1.0-development20240408
api/auth/gcp/v0.*
api/auth/gcp/v0.1.0
api/auth/gcp/v0.2.0
api/auth/gcp/v0.3.0
api/auth/gcp/v0.4.0
api/auth/gcp/v0.4.1
api/auth/gcp/v1.*
api/auth/gcp/v1.1.0-development20240408
api/auth/jwt/v2.*
api/auth/jwt/v2.4.0
api/auth/jwt/v2.5.0
api/auth/jwt/v2.5.1
api/auth/kubernetes/v1.*
api/auth/kubernetes/v1.1.0-development20240408
api/auth/kubernetes/v2.*
api/auth/kubernetes/v2.0.1
api/auth/kubernetes/v2.2.0
api/auth/kubernetes/v2.3.0
api/auth/kubernetes/v2.4.0
api/auth/kubernetes/v2.5.0
api/auth/kubernetes/v2.5.1
api/auth/ldap/v1.*
api/auth/ldap/v1.1.0-development20240408
api/auth/ldap/v2.*
api/auth/ldap/v2.0.1
api/auth/ldap/v2.2.0
api/auth/ldap/v2.3.0
api/auth/ldap/v2.4.0
api/auth/ldap/v2.5.0
api/auth/ldap/v2.5.1
api/auth/userpass/v0.*
api/auth/userpass/v0.1.0
api/auth/userpass/v0.2.0
api/auth/userpass/v0.3.0
api/auth/userpass/v0.4.0
api/auth/userpass/v0.4.1
api/auth/userpass/v1.*
api/auth/userpass/v1.1.0-development20240408
api/auth/userpass/v2.*
api/auth/userpass/v2.0.1
api/auth/userpass/v2.2.0
api/auth/userpass/v2.3.0
api/auth/userpass/v2.4.0
api/auth/userpass/v2.5.0
api/auth/userpass/v2.5.1
api/v1.*
api/v1.0.1
api/v1.0.2
api/v1.0.3
api/v1.0.4
api/v1.1.1
api/v1.100.0-development20240408
api/v1.2.0
api/v1.3.1
api/v1.5.0
api/v1.6.0
api/v1.7.0
api/v1.7.1
api/v1.7.2
api/v1.8.0
api/v1.8.1
api/v1.8.2
api/v1.8.3
api/v1.9.0
api/v1.9.1
api/v1.9.2
api/v2.*
api/v2.0.1
api/v2.1.0
api/v2.2.0
api/v2.3.0
api/v2.4.0
api/v2.5.0
api/v2.5.1
Other
before-plugin-removal
dev-namespaces-base-20250215
dev-namespaces-base-20250311
dev-namespaces-base-20250424
sdk/v0.*
sdk/v0.1.10
sdk/v0.1.11
sdk/v0.1.12
sdk/v0.1.13
sdk/v0.1.8
sdk/v0.1.9
sdk/v0.2.1
sdk/v0.3.0
sdk/v0.4.1
sdk/v0.5.0
sdk/v0.5.1
sdk/v0.5.3
sdk/v0.6.0
sdk/v0.6.1
sdk/v0.6.2
sdk/v0.7.0
sdk/v0.8.0
sdk/v0.9.0
sdk/v0.9.1
sdk/v1.*
sdk/v1.100.0-development20240408
sdk/v2.*
sdk/v2.0.1
sdk/v2.1.0
sdk/v2.2.0
sdk/v2.3.0
sdk/v2.4.0
sdk/v2.5.0
sdk/v2.5.1
v2.*
v2.0.0
v2.0.0-alpha20240329
v2.0.0-beta20240618
v2.1.0-beta20241114
v2.1.0-beta20241114.1
v2.1.0-beta20241114.2
v2.1.0-beta20241114.3
v2.2.0-beta20250213
v2.3.0-beta20250528
v2.4.0
v2.5.0
v2.5.0-beta20251125
v2.5.1
v2.5.2
v2.5.3
v2.5.4