CVE-2026-9807

Name: CVE-2026-9807
Creator: NVD / NIST
Published: 2026-05-28T09:16:49.76+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2026-9807 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.19%

9.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 18.9.0, < 18.10.7
Gitlab	Gitlab	>= 18.11.0, < 18.11.4
Gitlab	Gitlab	19.0.0

References

https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/590694Broken Link
https://hackerone.com/reports/3554993Permissions Required

Timeline

Published: May 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-9807?

How severe is CVE-2026-9807?

CVE-2026-9807 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2026-9807?

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-2026-9807?

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

Scan your code now

Source: NVD / NIST