CVE-2026-16553 — MEDIUM (5.4)

Q: How severe is CVE-2026-16553?

CVE-2026-16553 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-16553?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.

Vulnerability Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed some sensitive information to be disclosed to an unintended host due to improper handling of upstream requests in virtual registries.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Gitlab	Gitlab	>= 18.8.0, < 19.0.5

Related Weaknesses (CWE)

CWE-522

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/603269Broken Link

FAQ

What is CVE-2026-16553?

CVE-2026-16553 is a vulnerability with a CVSS score of 5.4 (MEDIUM). GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed some sensitive i...

How severe is CVE-2026-16553?

CVE-2026-16553 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-16553?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.