GitHub Advisoryadvisory · Go

GHSA-v8v8-cm84-m686 OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

HIGH Published 2026-05-28 Modified 2026-05-28 Official page ↗
Aliases
CVE-2026-45808
Ecosystem
Go
Packages
github.com/openbao/openbao
Severity
High
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weaknesses
CWE-863
Reviewed
2026-05-28

Affected packages

• Go github.com/openbao/openbao: < 2.5.4 → fixed in 2.5.4

Description

Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented `sys/revoke` and `sys/renew` endpoints. Patch This will be addressed in v2.5.4.

Related

Alias · CVE (1)

  • CVE-2026-45808 OpenBao is an open source identity-based secrets management system. vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References