CVE-2021-39908

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In all versions of GitLab CE/EE starting from 0.8.0 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 certain Unicode characters can be abused to commit malicious code into projects without being noticed in merge request or source code viewer UI.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-94

Affected software

VendorProductVersions
GitLabGitLab>=0.8.0, <14.2.6; >=14.3, <14.3.4; >=14.4, <14.4.1

References

Timeline

Published
Apr 1, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-399095.3Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all veCVE-2021-39914.3An Improper Authorization vulnerability exists in Dolibarr versions prior to the 'develop' branch. A user with restricted permissions in theCVE-2021-399104.3An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.6 before 14.3.6, all versions starting from 14.4 beforeCVE-2021-399114.3An improper access control flaw in all versions of GitLab CE/EE starting from 13.9 before 14.2.6, all versions starting from 14.3 before 14.CVE-2021-399125.3A potential DoS vulnerability was discovered in GitLab CE/EE starting with version 13.7. Using a malformed TIFF images was possible to triggCVE-2021-399136.7Accidental logging of system root password in the migration log in all versions of GitLab CE/EE before 14.2.6, all versions starting from 14CVE-2021-399144.3A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of rCVE-2021-399155.3Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from 13.0 before 14.3.6, all versions starting frCVE-2021-399164.3Lack of an access control check in the External Status Check feature allowed any authenticated user to retrieve the configuration of any ExtCVE-2021-399176.5An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 beforeCVE-2021-399184.3Incorrect Authorization in GitLab EE affecting all versions starting from 11.1 before 14.3.6, all versions starting from 14.4 before 14.4.4,CVE-2021-399194.4In all versions of GitLab CE/EE starting version 14.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting fr
CVE-2021-39908: High severity, CVSS 7.5 | Vulnix