PT-2026-65051 · Bitnami · Openbao

Published 2026-07-27 · Updated 2026-07-27

OSV

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao installations that have an OIDC/JWT authentication method enabled and a role with callback mode=direct configured are vulnerable to XSS via the error description parameter on the page for a failed authentication. This allows an attacker access to the token used in the Web UI by a victim. The error description parameter has been replaced with a static error message in v2.5.2. The vulnerability can be mitigated by removing any roles with callback mode set to direct.

Related Identifiers

BIT-OPENBAO-2026-33758

Affected Products

Openbao

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-33758 · Security Note
• https://osv.dev/vulnerability/BIT-openbao-2026-33758 · Vendor Advisory
• https://github.com/openbao/openbao/releases/tag/v2.5.2 · Note
• https://github.com/openbao/openbao/security/advisories/GHSA-cpj3-3r2f-xj59 · Note
• https://github.com/openbao/openbao/commit/6e2b2dd84f0e47cebc90d6e79609dd5274732662 · Note
• https://github.com/openbao/openbao/pull/2709 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2452294 · Note
• https://access.redhat.com/security/cve/CVE-2026-33758 · Note
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33758.json · Note