CVE-2026-45808CWE-863broken-access-control

CVE-2026-45808

published August 8, 2026

CVSS
7.1
EPSS
0%
Percentile
35.9
In the wild
Unconfirmed
What it is

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, 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. This is fixed in OpenBao v2.5.4.

The record
Technical detail
CVSS
7.1 · NONE
CVSS v4.0
Not supplied
EPSS
0.00427 · 35.9th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-08-08T02:16Z
References (4)
https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c · [email protected]https://github.com/openbao/openbao/pull/3152 · [email protected]https://github.com/openbao/openbao/releases/tag/v2.5.4 · [email protected]https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686 · [email protected]
EPSS history
Timeline
  • 07 AUG 21:15Z
    OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL
    cvelistv5