CVE-2026-55774
- Source
- https://cve.org/CVERecord?id=CVE-2026-55774
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55774.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-55774
- Aliases
- Downstream
- Related
- Published
- 2026-09-15T15:42:03Z
- Modified
- 2026-10-16T02:31:45Z
- Severity
-
- 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808
- Details
-
OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an OpenBao user with access to sys/leases/revoke/:lease_id in one namespace could revoke a lease in another namespace when the foreign lease_id was known, bypassing namespace ACL isolation. The affected lease lookup routing in vault/expiration.go allowed FetchLeaseInfo and loadEntry to resolve cached or stored lease data outside the request namespace, allowing a tenant that intentionally disclosed a lease identifier to have the lease and its underlying credential revoked by another tenant. This issue is fixed in version 2.5.5.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-863" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55774.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-2026-55774.json
- https://github.com/openbao/openbao/security/advisories/GHSA-c36x-h252-g9x2
- https://nvd.nist.gov/vuln/detail/CVE-2026-55774
- https://github.com/openbao/openbao/commit/9ba1413d793223cca67db12434093a2f25fdc540
- https://github.com/openbao/openbao/commit/b20b999dd4044d7b419a5472d8fe08407828be37
- https://github.com/openbao/openbao/pull/3307
- https://github.com/openbao/openbao/pull/3310
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": "9ba1413d793223cca67db12434093a2f25fdc540" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "b20b999dd4044d7b419a5472d8fe08407828be37" } ], "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