Advisory Database
  • Advisories
  • Dependency Scanning
  1. golang
  2. ›
  3. github.com/rancher/rancher
  4. ›
  5. CVE-2025-23388

CVE-2025-23388: Rancher allows an unauthenticated stack overflow in /v3-public/authproviders API

February 27, 2025

An unauthenticated stack overflow crash, leading to a denial of service (DoS), was identified in Rancher’s /v3-public/authproviders public API endpoint. A malicious user could submit data to the API which would cause the Rancher server to crash, but no malicious or incorrect data would actually be written in the API. The downstream clusters, i.e., the clusters managed by Rancher, are not affected by this issue.

This vulnerability affects those using external authentication providers as well as Rancher’s local authentication.

References

  • github.com/advisories/GHSA-xr9q-h9c7-xw8q
  • github.com/rancher/rancher
  • github.com/rancher/rancher/security/advisories/GHSA-xr9q-h9c7-xw8q
  • nvd.nist.gov/vuln/detail/CVE-2025-23388

Code Behaviors & Features

Detect and mitigate CVE-2025-23388 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 2.8.0 before 2.8.13, all versions starting from 2.9.0 before 2.9.7, all versions starting from 2.10.0 before 2.10.3

Fixed versions

  • 2.8.13
  • 2.9.7
  • 2.10.3

Solution

Upgrade to versions 2.10.3, 2.8.13, 2.9.7 or above.

Impact 8.2 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Learn more about CVSS

Weakness

  • CWE-121: Stack-based Buffer Overflow

Source file

go/github.com/rancher/rancher/CVE-2025-23388.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Wed, 14 May 2025 12:14:41 +0000.