CVE-2021-22175 GitLab GitLab: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Mar 11, 2026
What to do
- Install GitLab's security update for GitLab. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- GitLab Server-Side Request Forgery (SSRF) Vulnerability
- Product
- GitLab GitLab
- CISA description
- GitLab contains a server-side request forgery (SSRF) vulnerability when requests to the internal network for webhooks are enabled.
- Type of flaw
- Web page flaw (CWE-918)
- Confirmed exploited
- Feb 18, 2026
- US federal patch deadline
- Mar 11, 2026
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2021-22175 ·
Questions about CVE-2021-22175
Is CVE-2021-22175 being exploited?
Yes. CISA added CVE-2021-22175 to its Known Exploited Vulnerabilities catalog on Feb 18, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2021-22175?
Install GitLab's security update for GitLab. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2021-22175?
Only if you use GitLab GitLab. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.