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Fencer Intel
medium 6.8

CVE-2021-22175 kev in the critical feed json

When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all version…

published 5y ago modified last mo. also BIT-gitlab-2021-22175 , EUVD-2021-9321

cvss
6.8
version 3.1, CNA
cisa kev
Exploited
added 2026-02-18
epss
53.4%
EPSS 53.4% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known, plus a Nuclei check

Summary

When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled

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 13.6.7, 13.7.7, 13.8.4
  • gitlab gitlab 13.6.7, 13.7.7, 13.8.4
  • gitlab gitlab_enterprise 13.6.7, 13.7.7, 13.8.4

Is CVE-2021-22175 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.

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Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
8mo ago
Patch by
2026-03-11 (7mo 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, GitLab
CISA name
GitLab Server-Side Request Forgery (SSRF) Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
8mo ago

Exploit prediction

53.37% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template GitLab CI Lint API - Server-Side Request Forgery nuclei detection template
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/issues/294178 referenced PoC, tagged "exploit" by a source, unverified

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 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami gitlab
>=10.5.0, <13.6.7
>=13.7.0, <13.7.7
>=13.8.0, <13.8.4
13.6.7
13.7.7
13.8.4

Affected products

  • GitLab GitLab

Classification

Weakness
  • CWE-918 Server-Side Request Forgery
Technology feeds

References

Sources

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.