GitHub Advisoryadvisory · Go
GHSA-p49j-v9wc-wg57 OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation
LOW
Official page ↗
- Aliases
- CVE-2026-40264
- Ecosystem
- Go
- Packages
- github.com/openbao/openbao
- Severity
- Low
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Weaknesses
- CWE-1259
- Reviewed
- 2026-04-21
Affected packages
• Go github.com/openbao/openbao: < 0.0.0-20260420162526-f58111d2ca54 → fixed in 0.0.0-20260420162526-f58111d2ca54
Description
Impact
OpenBao's namespaces provide multi-tenant separation. A tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant.
Patches
This was addressed in v2.5.3.
Related
Alias · CVE (1)
- CVE-2026-40264 OpenBao is an open source identity-based secrets management system. vulnerability
Weakness · CWE (1)
- CWE-1259 Improper Restriction of Security Token Assignment weakness
References
- https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-40264 advisory
- https://github.com/openbao/openbao/pull/2934 web
- https://github.com/openbao/openbao/commit/059cc5950303688335d5c8ab9af8e453795d693a web
- https://github.com/openbao/openbao package
- https://github.com/openbao/openbao/releases/tag/v2.5.3 web