Description

An issue has been discovered in GitLab CE/EE affecting all versions from 7.12 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed unauthorized users to render the GitLab instance unresponsive to legitimate users by sending multiple concurrent large SAML responses.

INFO

Published Date :

2025-09-12T06:06:04.796Z

Last Modified :

2025-09-12T17:19:32.801Z

Source :

GitLab
AFFECTED PRODUCTS

The following products are affected by CVE-2025-2256 vulnerability.

Vendors Products
Gitlab
  • Gitlab
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-2256.

URL Resource
https://about.gitlab.com/releases/2025/09/10/patch-release-gitlab-18-3-2-released/ cve-icon cve-icon cve-icon
https://gitlab.com/gitlab-org/gitlab/-/issues/524633 cve-icon cve-icon cve-icon
https://hackerone.com/reports/3019485 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-2256 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-2256 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact