Findings

CVE-2026-33758

OpenBao is an open source identity-based secrets management system.

Published Mar 27, 2026 · updated Jul 15, 2026 · openbao openbao

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 configured are vulnerable to XSS via the 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 parameter has been replaced with a static error message in v2.5.2. The vulnerability can be mitigated by removing any roles with set to .

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 27, 2026 · NIST NVD

    Detected

    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 configured are vulnerable to XSS via the 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 parameter has been replaced with a static erro

  2. Jul 15, 2026 · NIST NVD

    Updated

    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 configured are vulnerable to XSS via the 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 parameter has been replaced with a static erro

Affected

  • cpe openbao/openbaoversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-33758

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33758

    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 configured are vulnerable to XSS via the parameter on

    nvd.nist.gov

References