CVE-2025-62513Network attack vector

Sensitive-data exposure via misapplied audit-log HMAC

Published Oct 22, 2025 · Updated Oct 22, 2025

Sensitive-data exposure in OpenBao 2.2.0 through 2.4.1 allows attackers to read ACME and OIDC secrets from audit logs. The audit formatter walks the original response while modifying its clone, so byte-valued HTTPRawBody fields bypass HMAC redaction and remain raw. Exposure requires audit logging plus PKI ACME or identity OIDC issuer use and access to the resulting logs; ACME codes expire quickly.

CVSS severity5.7
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Sensitive-data exposure in OpenBao 2.2.0 through 2.4.1 allows attackers to read ACME and OIDC secrets from audit logs. The audit formatter walks the original response while modifying its clone, so byte-valued HTTPRawBody fields bypass HMAC redaction and remain raw. Exposure requires audit logging plus PKI ACME or identity OIDC issuer use and access to the resulting logs; ACME codes expire quickly.

The record

CVE
CVE-2025-62513
Published
Oct 22, 2025
Updated
Oct 22, 2025
Vendor
OpenBao
Product
OpenBao
Classifications
CWE-532, T1552.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.2.0, < 2.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenBao · OpenBaoversion=>= 2.2.0, < 2.4.2

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.7GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo