What is CVE-2026-9204?

CVE-2026-9204 is a medium-severity vulnerability in GitLab, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-06-11.

How severe is CVE-2026-9204?

Medium severity. CVSS v3 base score is 5.3 out of 10.

SSRF in GitLab

CVE-2026-9204

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to read arbitrary files from the Gitaly server and access internal network resources during repository import, due to insufficient validation of secondary URLs.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-06-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001

Affected products

GitLab — versions 18.10, 18.11, 19.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ (Release Notes)
gitlab.com/gitlab-org/gitlab/-/work_items/592677 (Issue Tracking)

Frequently asked questions

What is CVE-2026-9204?: CVE-2026-9204 is a medium-severity vulnerability in GitLab, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-06-11.
How severe is CVE-2026-9204?: Medium severity. CVSS v3 base score is 5.3 out of 10.