Information disclosure in GitLab Enterprise Edition - CVE-2021-39889
Published: October 4, 2021
Vulnerability identifier: #VU57028
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39889
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GitLab, Inc
Affected software:
GitLab Enterprise Edition
GitLab Enterprise Edition
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to an insecure direct object reference (IDOR) issue. A remote authenticated attacker can make a specially crafted API call with the ID of the protected branch and disclose the protected branch name.
How to mitigate CVE-2021-39889
Install updates from vendor's website.