CVE-2021-39908

7.5 highEPSS 1.3%

High (7.5) in gitlab gitlab. EPSS 1.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2022-04-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gitlab:gitlab

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

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