CVE-2025-59043: OpenBao has potential Denial of Service vulnerability when processing malicious unauthenticated JSON requests

CVE-2025-59043 · Severity: low · CVSS 3.1 · Published 2025-10-30

OpenBao has potential Denial of Service vulnerability when processing malicious unauthenticated JSON requests in github.com/openbao/openbao

Technologies: github.com/openbao/openbao (Go). Vendors: Go.

Quick answers

Is CVE-2025-59043 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-59043 being exploited in the wild.
How severe is CVE-2025-59043?
Low severity, with a CVSS score of 3.1, published 30 October 2025.
Which products and versions are affected?
github.com/openbao/openbao (Go) SEMVER:introduced=0, SEMVER:introduced=0,fixed=2.4.1.
Is there a fix for CVE-2025-59043?
Yes. github.com/openbao/openbao (Go): upgrade to 2.4.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-59043?
Check whether you run github.com/openbao/openbao (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/openbao/openbao (Go): upgrade to 2.4.1 or later
    go get github.com/openbao/openbao@v2.4.1

Affected products

  • github.com/openbao/openbao (Go) SEMVER:introduced=0, SEMVER:introduced=0,fixed=2.4.1

Identifiers

  • CVE-2025-59043
  • GHSA-g46h-2rq9-gw5m
  • GO-2025-4039

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