CVE-2021-39927 json
Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and…
published 4y ago modified 2mo ago also BIT-gitlab-2021-39927 , EUVD-2021-26283
- cvss
- 3.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443
Patch / fix
- bitnami gitlab 14.4.5, 14.5.3, 14.6.2
- gitlab gitlab 14.4.5, 14.5.3, 14.6.2
- gitlab gitlab_enterprise 14.4.5, 14.5.3, 14.6.2
Is CVE-2021-39927 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
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=8.4.0, <14.4.5 >=14.5.0, <14.5.3 >=14.6.0, <14.6.2 |
14.4.5 14.5.3 14.6.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
-
gitlab.com
/gitlab-org/gitlab/-/issues/340476
broken-link, vendor-advisory, advisory
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39927.json
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-39927
web
Sources
- CVE List CVE-2021-39927
- NVD CVE-2021-39927
- OSV BIT-gitlab-2021-39927
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.