CVE-2021-39935 kev in the critical feed json
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 befor…
published 4y ago modified 2mo ago also BIT-gitlab-2021-39935 , EUVD-2021-26291
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2026-02-03
- epss
- 36.1%
- EPSS 36.1% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API
Patch / fix
cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- bitnami gitlab 14.3.6, 14.4.4, 14.5.2
- gitlab gitlab 14.3.6, 14.4.4, 14.5.2
- gitlab gitlab_enterprise 14.3.6, 14.4.4, 14.5.2
- gitlab Arch Linux 14.5.2-1
arch linux advisories AVG-2603
Is CVE-2021-39935 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 FencerTimeline
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- 9mo ago
- Patch by
- 2026-02-24 (8mo ago)
- Ransomware
- Not known
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Vendor, product
- GitLab, Community and Enterprise Editions
- CISA name
- GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9mo ago
Exploit prediction
36.14% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=10.5.0, <14.3.6 >=14.4.0, <14.4.4 >=14.5.0, <14.5.2 |
14.3.6 14.4.4 14.5.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
-
gitlab.com
/gitlab-org/gitlab/-/issues/346187
issue-tracking, vendor-advisory, advisory
-
hackerone.com
/reports/1236965
permissions-required, third-party-advisory, advisory
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json
third-party-advisory, advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39935
government-resource, us-government-resource, web
-
nvd.nist.gov
/vuln/detail/CVE-2021-39935
web
Sources
- CVE List CVE-2021-39935
- NVD CVE-2021-39935
- OSV BIT-gitlab-2021-39935
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.