Upstream information

CVE-2026-33757 at MITRE

Description

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao does not prompt for user confirmation when logging in via JWT/OIDC and a role with `callback_mode` set to `direct`. This allows an attacker to start an authentication request and perform "remote phishing" by having the victim visit the URL and automatically log-in to the session of the attacker. Despite being based on the authorization code flow, the `direct` mode calls back directly to the API and allows an attacker to poll for an OpenBao token until it is issued. Version 2.5.2 includes an additional confirmation screen for `direct` type logins that requires manual user interaction in order to finish the authentication. This issue can be worked around either by removing any roles with `callback_mode=direct` or enforcing confirmation for every session on the token issuer side for the Client ID used by OpenBao.

Other Security Trackers

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v3 Scores
CVSS detail CNA (0b0ca135-0b70-47e7-9f44-1890c2a1c46c) CNA (GitHub) National Vulnerability Database
Base Score 9.6 9.6 8.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Attack Vector Network Network Network
Attack Complexity Low Low Low
Privileges Required None None None
User Interaction Required Required Required
Scope Changed Changed Unchanged
Confidentiality Impact High High High
Integrity Impact High High High
Availability Impact Low Low Low
CVSSv3 Version 3.1 3.1 3.1
No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • openbao >= 2.5.2-1.1
  • openbao-agent >= 2.5.2-1.1
  • openbao-cassandra-database-plugin >= 2.5.2-1.1
  • openbao-influxdb-database-plugin >= 2.5.2-1.1
  • openbao-mysql-database-plugin >= 2.5.2-1.1
  • openbao-mysql-legacy-database-plugin >= 2.5.2-1.1
  • openbao-postgresql-database-plugin >= 2.5.2-1.1
  • openbao-server >= 2.5.2-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10438

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Server 16.1 govulncheck-vulndb Released
SUSE Linux Enterprise Server for SAP applications 16.1 govulncheck-vulndb Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Module for Package Hub 15 SP5 govulncheck-vulndb Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 govulncheck-vulndb Affected
openSUSE Leap 15.5 govulncheck-vulndb Affected
openSUSE Leap 15.6 govulncheck-vulndb Released

SUSE Timeline for this CVE

CVE page created: Fri Mar 27 01:47:24 2026
CVE page last modified: Sat Aug 1 11:33:32 2026