PT-2026-33885 · Openbao+1 · Openbao+1

Published 2026-04-21 · Updated 2026-05-27 · CVE-2026-40264

Positive Technologies (AI Summary)

CVSS v3.1

2.7

Low

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions OpenBao versions prior to 2.5.3

Description OpenBao is an open source identity-based secrets management system that utilizes namespaces for multi-tenant separation. A flaw exists where a tenant that leaks token accessors may have their token revoked or renewed by a privileged administrator from a different tenant.

Recommendations Update to version 2.5.3.

Fix

DoS

Weakness Enumeration

CWE-1259

Related Identifiers

CVE-2026-40264

GHSA-P49J-V9WC-WG57

OPENSUSE-SU-2026:10594-1

Affected Products

Openbao

Red Os

References · 19

• https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-p49j-v9wc-wg57 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40264 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10594-1 · Vendor Advisory
• https://github.com/openbao/openbao · Note
• https://github.com/openbao/openbao/releases/tag/v2.5.3 · Note
• https://github.com/openbao/openbao/pull/2934 · Note
• https://github.com/openbao/openbao/commit/059cc5950303688335d5c8ab9af8e453795d693a · Note
• https://twitter.com/dailycve/status/2046720795557163222 · Twitter Post
• https://suse.com/security/cve/CVE-2026-3605 · Note
• https://suse.com/security/cve/CVE-2026-39396 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-openbao-cve-2026-40264-7.3 · Note
• https://twitter.com/_cvereports/status/2049063852772397525 · Twitter Post
• https://twitter.com/CVEnew/status/2046571866056536465 · Twitter Post
• https://suse.com/security/cve/CVE-2026-39388 · Note