CVE-2026-1080

Authorization Bypass Through User-Controlled Key in GitLab

4.3 Medium

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.28%Up 0.3 points since Feb 11, 2026

What each source reports

CVE List Score used 4.3

Authorization Bypass Through User-Controlled Key in GitLab

Record: CVE-2026-1080
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

EUVDEUVD-2026-7047 4.3

Record: EUVD-2026-7047
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-x398-2rgf-67p8 4.3

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7...

Record: GHSA-x398-2rgf-67p8
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

NVD 4.3

Record: CVE-2026-1080
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSV 4.3

Authorization Bypass Through User-Controlled Key in GitLab

Record: CVE-2026-1080
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-1080 4.3

Record: UBUNTU-CVE-2026-1080
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

gitlab

Affected packages

Affected packages
Package	Affected	Fixed
`gitlab` Ubuntu:16.04:LTS	All versions, plus listed versions 8.4.3+dfsg-98.4.3+dfsg-128.5.8+dfsg-5	None known
`gitlab-agent` Ubuntu:24.04:LTS	All versions, plus listed versions 14.1.0-116.1.3-2	None known
`gitlab-agent` Ubuntu:25.10	All versions, plus listed versions 16.1.3-2	None known
`gitlab-agent` Ubuntu:26.10	All versions, plus listed versions 16.1.3-2build1	None known
`gitlab-agent` Ubuntu:26.04:LTS	All versions, plus listed versions 16.1.3-216.1.3-2build1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-1080 is a medium vulnerability (CVSS 4.3) in Gitlab, published February 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 21st percentile. No source names a fixed version.