Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| openbao | openbao | < 2.5.4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openbao | 2.5.4-1.1 | openSUSE-SU-2026:10835-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openbao | 2.5.4-r0 | — |
| Alpine v3.23 | openbao | 2.5.4-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/openbao/openbao | < 2.5.4 | 2.5.4 | GHSA-v8v8-cm84-m686 |
| Go | github.com/openbao/openbao | all versions | — | GO-2026-5657 |
Advisories 3
- WID-SEC-2026-1640 OpenBao: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Aug 9, 2026
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- openSUSE-SU-2026:10835-1 openbao-2.5.4-1.1 on GA media SUSE / openSUSE Security Updates · May 22, 2026