CVE-2021-39899 json
In all versions of GitLab CE/EE, an attacker with physical access to a user’s machine may brute force the user’s password via the change pa…
published 2021-10-04 5 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2021-39899 , EUVD-2021-26255
- cvss
- 2.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
In all versions of GitLab CE/EE, an attacker with physical access to a user’s machine may brute force the user’s password via the change password function. There is a rate limit in place, but the attack may still be conducted by stealing the session id from the physical compromise of the account and splitting the attack over several IP addresses and passing in the compromised session value from these various locations.
Patch / fix
- bitnami gitlab 14.1.7, 14.2.5, 14.3.1
- gitlab gitlab 14.1.7, 14.2.5, 14.3.1
- gitlab gitlab_enterprise 14.1.7, 14.2.5, 14.3.1
- gitlab Arch Linux 14.3.1-1
arch linux advisories AVG-2431
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.9 | CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 4.2 | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
| OSV | 3.1 | 4.2 | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=1.0.0, <14.1.7 >=14.2.0, <14.2.5 >=14.3.0, <14.3.1 |
14.1.7 14.2.5 14.3.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-640 Weak Password Recovery Mechanism for Forgotten Password
- Technology feeds
References
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39899.json
vendor-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/339154
broken-link, web
-
nvd.nist.gov
/vuln/detail/CVE-2021-39899
web
Sources
- CVE List CVE-2021-39899
- NVD CVE-2021-39899
- OSV BIT-gitlab-2021-39899
Fencer Vulns 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.