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ExploitedIn CISA KEVFix available

CVE-2021-22175

Exploitation confirmed. First attested on 2026-02-18 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2021-06-11
  • Fixed in13.8.4 · 13.7.7 · 13.6.7
  • WeaknessCWE-918

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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

Timeline

dates in UTC
  1. 2021-06-1116:15CVE publishedNVD
  2. 2026-02-18Added to the CISA KEV catalogCISA KEV
  3. 2026-02-18Listed as exploited by GCVEGCVE
  4. 2026-02-18Exploitation first reportedCISA KEV
  5. 2026-02-1904:55SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-22175?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-22175?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
GitLab
BranchAffectedFixed in
13.8≥ 13.8.0, < 13.8.413.8.4
13.7≥ 13.7.0, < 13.7.713.7.7
13.6≥ 10.5.0, < 13.6.713.6.7

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitLab, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • GitLab
    Affected
    • = >=10.5, <13.6.7no fix stated
    • = >=13.7, <13.7.7no fix stated
    • = >=13.8, <13.8.4no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2021-06-11

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gitlabUbuntu:16.04:LTSall versions · no fixed version listed

Full record on NVD

Fix

  1. Update GitLab to 13.8.4 · 13.7.7 · 13.6.7
  2. CISA’s 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 2026-03-11

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2026-02-18
Patch Due Date
2026-03-11
Ransomware Use
Unknown
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.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-06-11
Last Modified
2026-10-01
NVD status
Analyzed
GitHub Advisory
GHSA-4gm2-v7j4-74p8

Frequently asked questions

What is CVE-2021-22175?

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

Is CVE-2021-22175 actively exploited?

Yes. CVE-2021-22175 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-03-11.

What is the CVSS score for CVE-2021-22175?

CVE-2021-22175 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Same product first, then the same vendor advisory and the same publication week.

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Sources for this record