CVE-2021-22175: GitLab Server-Side Request Forgery (SSRF) Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 1,713 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 53.4%
EPSS score, percentile 99 of all scored records
- How severe?
- 6.8 Medium
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline . Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- >=10.5, <13.6.7
- >=13.7, <13.7.7
- >=13.8, <13.8.4
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: .
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22175.json
- https://nvd.nist.gov/vuln/detail/CVE-2021-22175
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | >=10.5, <13.6.7 |
| Affected | >=13.7, <13.7.7 |
| Affected | >=13.8, <13.8.4 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
GitLab contains a server-side request forgery (SSRF) vulnerability when requests to the internal network for webhooks are enabled.
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2021-22175 to its Known Exploited Vulnerabilities (KEV) catalog on 18 Feb 2026.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 11 Mar 2026.
- The CVE record was published on 11 Jun 2021, 1,713 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 6.8 (Medium), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 53.4% (percentile 99), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
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
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
- CWE-918: Server-Side Request Forgery (SSRF)
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CISA due date for the required action | |
| CVE record last updated |
References
More exploited GitLab vulnerabilities
- CVE-2026-85706: GitLab Community Edition and Enterprise Edition Path Traversal Vulnerability
- CVE-2021-39935: GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vulnerability
- CVE-2023-7028: GitLab Community and Enterprise Editions Improper Access Control Vulnerability
- CVE-2021-22205: GitLab Community and Enterprise Editions Remote Code Execution Vulnerability