CISA KEV · Known exploitedCritical

CVE-2021-22175

GitLab

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
9.8
EPSS
53.4%
98.9% percentile
CISA KEV
Listed
Published
2021.06.12
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability53.4%
Technical severityCVSS 9.8

Vulnerability overview

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

Affected product and versions

Product
GitLab
Affected versions
>=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
Fixed versions
13.6.7, 13.7.7, 13.8.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
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.

Due date: 2026.03.11
  1. 1
    Identify

    Confirm that GitLab and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-918
KEV added
2026.02.18
Ransomware use
미확인
CVE-2021-22175 — GitLab | SECUFOCUS NOW