Medium severity · published Oct 13, 2026
CVE-2026-78335
Incorrect Authorization in GitLab
4.2
CVSS
0.2%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user holding a project-scoped fine-grained Personal Access Token to modify integrations belonging to a group outside the token's scope, due to incorrect authorization checks.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
19.1 before 19.2.8; 19.3 before 19.3.5; 19.4 before 19.4.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78335
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78335
gitlab.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/621535
technical-description
https://hackerone.com/reports/3893467
docs.gitlab.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
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