BIT-openbao-2026-33758

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-33758.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-openbao-2026-33758
Aliases
Published
2026-07-27T05:49:05Z
Modified
2026-09-08T08:48:16Z
Summary
OpenBao has Reflected XSS in its OIDC authentication error message
Details

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.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
}
References

Affected packages

Bitnami / openbao

Package

Name
openbao
Purl
pkg:bitnami/openbao

Severity

  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.2

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-33758.json"