What is GHSA-v8v8-cm84-m686?

GHSA-v8v8-cm84-m686 is a security advisory published by GitHub Security Advisories with High severity. OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Which CVE IDs does GHSA-v8v8-cm84-m686 cover?

GHSA-v8v8-cm84-m686 covers the following CVE IDs: CVE-2026-45808. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-v8v8-cm84-m686?

GHSA-v8v8-cm84-m686 affects 1 product, including: go/github.com/openbao/openbao:\u003c= 2.5.3.

GHSA-v8v8-cm84-m686High

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

Vendor

GitHub Security Advisories

Published

May 28, 2026

Last Modified

May 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-45808 →

📋 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.

🎯 Affected products1

go/github.com/openbao/openbao:<= 2.5.3

🔗 References (5)

https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686
https://github.com/openbao/openbao/pull/3152
https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c
https://github.com/openbao/openbao/releases/tag/v2.5.4
https://github.com/advisories/GHSA-v8v8-cm84-m686