CVE-2025-52893

What it is

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. OpenBao before v2.3.0 may leak sensitive information in logs when processing malformed data. This is separate from the earlier HCSEC-2025-09 / CVE-2025-4166. This issue has been fixed in OpenBao v2.3.0 and later. Like with HCSEC-2025-09, there is no known workaround except to ensure properly formatted requests from all clients.

At a glance

Exploitability

Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-06-25 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:37 UTC Last updatedMost recent change to the record

Details

Published

2025-06-25 17:15 UTC

Last modified

2026-06-17 09:37 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-532 · Secrets in logs

Record status

Analyzed

Affected

• Openbao < 2.3.0

Attack profile CVSS 3.1 · 4.5

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None