CVE-2021-39908

EUVD-2021-26264
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.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
GitLabCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 52%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
0.8.0 ≤
𝑥
< 14.2.6
gitlabgitlab
0.8.0 ≤
𝑥
< 14.2.6
gitlabgitlab
14.3.0 ≤
𝑥
< 14.3.4
gitlabgitlab
14.3.0 ≤
𝑥
< 14.3.4
gitlabgitlab
14.4.0
gitlabgitlab
14.4.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
16.8.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
trusty
ignored
xenial
ignored
Common Weakness Enumeration
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39908.json
https://gitlab.com/gitlab-org/gitlab/-/issues/337193
https://hackerone.com/reports/1280077
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39908.json
https://gitlab.com/gitlab-org/gitlab/-/issues/337193
https://hackerone.com/reports/1280077