CVE-2021-39873

In all versions of GitLab CE/EE, there exists a content spoofing vulnerability which may be leveraged by attackers to trick users into visiting a malicious website by spoofing the content in an error response.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
GitLabCNA
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 50%
VendorProductVersion
gitlabgitlab
1.0.0 ≤
𝑥
< 14.1.7
gitlabgitlab
1.0.0 ≤
𝑥
< 14.1.7
gitlabgitlab
14.2.0 ≤
𝑥
< 14.2.5
gitlabgitlab
14.2.0 ≤
𝑥
< 14.2.5
gitlabgitlab
4.3.0
gitlabgitlab
4.3.0
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
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
focal
dne
bionic
dne
xenial
ignored
trusty
dne
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39873.json
https://gitlab.com/gitlab-org/gitlab/-/issues/27241
https://hackerone.com/reports/504961
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39873.json
https://gitlab.com/gitlab-org/gitlab/-/issues/27241
https://hackerone.com/reports/504961