CVE-2026-15387: gitlab — Fix

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have influenced the execution environment of Pipeline Execution Policy enforcement jobs, due to improper handling of job dependencies.

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CVSS v3.1 Score

4.3

MEDIUM

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

EPSS — Exploit Prediction

0.0020

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-349 CWE-349

Affected Products

Vendor	Product	Versions
gitlab	gitlab	19.1.0 — 19.1.7
gitlab	gitlab	19.2.0 — 19.2.5
gitlab	gitlab	All

References

Advisories & Patches

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/ https://gitlab.com/gitlab-org/gitlab/-/work_items/605632

Other References

https://hackerone.com/reports/3754358

Frequently Asked Questions

What is CVE-2026-15387? +

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have influenced the execution environment of Pipeline Execution Policy enforcement jobs, due to improper handling of job dependencies. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-15387? +

CVE-2026-15387 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0020, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-15387? +

CVE-2026-15387 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-15387? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-15387