Input validation error in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2020-26414
Published: January 8, 2021
Vulnerability identifier: #VU49351
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26414
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in regex when processing package names during package uploads. A remote user can pass specially crafted input to the application and perform a regular expression denial of service (DoS) attack.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Arch Linux
Gitlab Community Edition
Arch Linux
How to mitigate CVE-2020-26414
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 13.5.6, 13.6.4, 13.7.2
Gitlab Community Edition - addressed in versions 13.5.6, 13.6.4, 13.7.2
Gitlab Community Edition - addressed in versions 13.5.6, 13.6.4, 13.7.2