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CVE-2025-12571

Good to know:

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Date: November 26, 2025

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an unauthenticated user to cause a Denial of Service condition by sending specifically crafted requests containing malicious JSON payloads.

Severity Score

Related Resources (5)

https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released/
https://hackerone.com/reports/3362239
https://nvd.nist.gov/vuln/detail/CVE-2025-12571
https://gitlab.com/gitlab-org/gitlab/-/issues/579168
https://www.mend.io/vulnerability-database/CVE-2025-12571

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade Version

Upgrade to version https://gitlab.com/gitlab-org/gitlab.git - v18.4.5-ee;https://gitlab.com/gitlab-org/gitlab.git - v18.5.3-ee;https://gitlab.com/gitlab-org/gitlab.git - v18.6.1-ee

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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