title: Improper Access Control in GitLab
description: An authorization bypass vulnerability was discovered in GitLab affecting versions 11.3 prior to 16.7.7, 16.7.6 prior to 16.8.4, and 16.8.3 prior to 16.9.2. An attacker could bypass CODEOWNERS by utilizing a crafted payload in an old feature branch to perform malicious actions.
problem types: CWE-284: Improper Access Control
affected:
{
vendor: GitLab
product: GitLab
repo: git://git@gitlab.com:gitlab-org/gitlab.git
versions:
version: 11.3, status: affected, lessThan: 16.7.7, versionType: semver
version: 16.8, status: affected, lessThan: 16.8.4, versionType: semver
version: 16.9, status: affected, lessThan: 16.9.2, versionType: semver
defaultStatus: unaffected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: LOW
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
baseScore: 7.7
baseSeverity: HIGH
]
solutions: Upgrade to versions 16.7.7, 16.8.4, 16.9.2 or above.