CVE-2025-10858

Name: CVE-2025-10858
Creator: NVD / NIST
Published: 2025-09-26T09:15:30.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2025-10858 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in GitLab CE/EE affecting all versions before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that allows unauthenticated users to cause a Denial of Service (DoS) condition while uploading specifically crafted large JSON files.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

An issue was discovered in GitLab CE/EE affecting all versions before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that allows unauthenticated users to cause a Denial of Service (DoS) condition while uploading specifically crafted large JSON files.

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

0.56%

42.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	< 18.2.7
Gitlab	Gitlab	>= 18.3.0, < 18.3.3
Gitlab	Gitlab	18.4.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/570034Broken Link

Timeline

Published: Sep 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-10858?

How severe is CVE-2025-10858?

CVE-2025-10858 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2025-10858?

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-2025-10858?

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

Scan your code now

Source: NVD / NIST