4.5
MEDIUM
CVE-2025-52893
OpenBao Information Disclosure
Description

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.

INFO

Published Date :

June 25, 2025, 5:15 p.m.

Last Modified :

Aug. 12, 2025, 8:53 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

0.9
Affected Products

The following products are affected by CVE-2025-52893 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openbao openbao
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-52893.

URL Resource
https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717 Not Applicable
https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a Not Applicable
https://github.com/go-viper/mapstructure/pull/105 Not Applicable
https://github.com/go-viper/mapstructure/releases/tag/v2.3.0 Not Applicable
https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30 Patch
https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-52893 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-52893 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 12, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.0
    Added Reference Type GitHub, Inc.: https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717 Types: Not Applicable
    Added Reference Type GitHub, Inc.: https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a Types: Not Applicable
    Added Reference Type GitHub, Inc.: https://github.com/go-viper/mapstructure/pull/105 Types: Not Applicable
    Added Reference Type GitHub, Inc.: https://github.com/go-viper/mapstructure/releases/tag/v2.3.0 Types: Not Applicable
    Added Reference Type GitHub, Inc.: https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq Types: Vendor Advisory
  • New CVE Received by [email protected]

    Jun. 25, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
    Added CWE CWE-532
    Added Reference https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717
    Added Reference https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a
    Added Reference https://github.com/go-viper/mapstructure/pull/105
    Added Reference https://github.com/go-viper/mapstructure/releases/tag/v2.3.0
    Added Reference https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30
    Added Reference https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-52893 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-52893 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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