CVE-2025-12571

Name: CVE-2025-12571
Creator: NVD / NIST
Published: 2025-11-26T20:15:47.943+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2025-12571 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.44%

35.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 17.10.0, < 18.4.5
Gitlab	Gitlab	>= 18.5.0, < 18.5.3
Gitlab	Gitlab	18.6.0

References

https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released/
https://gitlab.com/gitlab-org/gitlab/-/issues/579168Broken Link
https://hackerone.com/reports/3362239Permissions Required

Timeline

Published: Nov 26, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-12571?

How severe is CVE-2025-12571?

CVE-2025-12571 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2025-12571?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-12571?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST