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CVE-2025-12571

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CVE-2025-12571

Published: Nov 26, 2025

Modified: Dec 10, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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.

VendorProductVersions

GitLab

GitLab

affected
17.10 - < 18.4.5
affected
18.5 - < 18.5.3
affected
18.6 - < 18.6.1

Weaknesses (CWE)

CWE-770

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

GitLab Issue #579168
issue-tracking
permissions-required
HackerOne Bug Bounty Report #3362239
technical-description
exploit
permissions-required

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