CVE-2021-22175

Advisory lineage Upstream: 0 Downstream: 1
Analyzed
Published: 11 Jun 2021, 15:30
Last modified:19 Feb 2026, 04:55

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
66.15% CRITICAL
66% probability +5.77%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

11 Jun 2021, 15:30
Published
Vulnerability first disclosed
18 Feb 2026, 00:00
Added to CISA KEV
GitLab Server-Side Request Forgery (SSRF) Vulnerability
19 Feb 2026, 04:55
Last Modified
Vulnerability information updated
11 Mar 2026, 00:00
CISA Remediation Due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

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

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 66.15%• Percentile: 99%

Techniques & Countermeasures

  • CWE-918•Server-Side Request Forgery (SSRF)

    The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Affected Systems

  • Unknown•GitLab

    ≥ 10.5, < 13.6.7 | ≥ 13.7, < 13.7.7 | ≥ 13.8, < 13.8.4 | ≥ 10.5.0, < 13.6.7 | ≥ 13.7.0, < 13.7.7 | ≥ 13.8.0, < 13.8.4

References (4)