CVE-2021-22175

Name: CVE-2021-22175
Creator: NVD / NIST
Published: 2021-06-11T16:15:09.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 53.37%

Last modified Jun 17, 2026

CVE-2021-22175 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 53.37% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

53.37%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 11, 2026.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 10.5.0, < 13.6.7
Gitlab	Gitlab	>= 13.7.0, < 13.7.7
Gitlab	Gitlab	>= 13.8.0, < 13.8.4

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22175.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/294178Exploit, Issue Tracking, Vendor Advisory
https://hackerone.com/reports/1059596Permissions Required, Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22175.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/294178Exploit, Issue Tracking, Vendor Advisory
https://hackerone.com/reports/1059596Permissions Required, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22175US Government Resource

Timeline

Published: Jun 11, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-22175?

How severe is CVE-2021-22175?

CVE-2021-22175 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 53.37% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2021-22175?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22175?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST