---
title: "CVE-2021-22175: GitLab Server-Side Request Forgery (SSRF) Vulnerability"
url: https://erroneo.us/security/cve/CVE-2021-22175/
description: "CVE-2021-22175 (GitLab GitLab): Exploited in the wild (CISA KEV). When requests to the internal network for webhooks are enabled, a server-side request…"
type: vulnerability-record
section: "Security Digest"
date_published: 2021-06-11
date_modified: 2026-10-01
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2021-22175"
kev: true
cvss: 6.8
epss: 0.53372
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2021-22175: GitLab Server-Side Request Forgery (SSRF) Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run GitLab GitLab. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-02-18, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-03-11 ; treat that as the outer limit, not the target.
- EPSS 53.4% , percentile 99: FIRST’s model estimates a 53.4% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

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 products (CVE record)

- GitLab GitLab: >=10.5, <13.6.7, >=13.7, <13.7.7, >=13.8, <13.8.4

## Severity

- GitLab CVSS 3.1: 6.8 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N`

## Exploitation

- CISA KEV: added 2026-02-18; federal due date 2026-03-11. Known ransomware use: Unknown.
- 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.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 53.37% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (gitlab.com)](https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22175.json)
- [CVE.org record CVE-2021-22175](https://www.cve.org/CVERecord?id=CVE-2021-22175)
- [NVD entry CVE-2021-22175](https://nvd.nist.gov/vuln/detail/CVE-2021-22175)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22175)
- [gitlab.com](https://gitlab.com/gitlab-org/gitlab/-/issues/294178)
- [hackerone.com](https://hackerone.com/reports/1059596)

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Source page: https://erroneo.us/security/cve/CVE-2021-22175/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt