Path traversal in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2020-26405
Published: November 3, 2020
Vulnerability identifier: #VU48109
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26405
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in package upload functionality. A remote attacker can send a specially crafted HTTP request and save packages in arbitrary locations.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2020-26405
Install update from vendor's website.
GitLab Enterprise Edition - addressed in versions 13.3.9, 13.4.5, 13.5.2
Gitlab Community Edition - addressed in versions 13.3.9, 13.4.5, 13.5.2
Gitlab Community Edition - addressed in versions 13.3.9, 13.4.5, 13.5.2