CVE-2021-39908 json
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…
published 4y ago modified 2mo ago also BIT-gitlab-2021-39908 , EUVD-2021-26264
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- bitnami gitlab 14.2.6, 14.3.4, 14.4.1
- gitlab gitlab 14.2.6, 14.3.4, 14.4.1
- gitlab gitlab_enterprise 14.2.6, 14.3.4, 14.4.1
Is CVE-2021-39908 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.27% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=0.8.0, <14.2.6 >=14.3.0, <14.3.4 >=14.4.0, <14.4.1 |
14.2.6 14.3.4 14.4.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39908.json
vendor-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/337193
broken-link, web
-
hackerone.com
/reports/1280077
permissions-required, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-39908
web
Sources
- CVE List CVE-2021-39908
- NVD CVE-2021-39908
- OSV BIT-gitlab-2021-39908
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Enhance with deb and rpm package type records.