Low severity · published Oct 21, 2026
CVE-2026-103515
Incorrect Authorization in GitLab
New
2.7
CVSS
0.2%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 19.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when an instance administrator locked a group's Duo availability, an authenticated user with group Owner permissions could have re-enabled AI-backed data egress to a third-party service for that group and its descendant projects, due to insufficient granularity of the admin-lock enforcement controls.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
19.2 before 19.3.6; 19.4 before 19.4.3; 19.5 before 19.5.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103515
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103515
docs.gitlab.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/
gitlab.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/631564
hackerone.com
https://hackerone.com/reports/3871692
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