CVE-2021-22205: in the CISA KEV catalogue
GitLab Community and Enterprise Editions Remote Code Execution Vulnerability. CISA added CVE-2021-22205 to the Known Exploited Vulnerabilities catalogue on 2021-11-03 with a default due date of 2021-11-17. Known ransomware campaign use: Known. Forensic triage flag: No.
GitHub Community and Enterprise Editions that utilize the ability to upload images through GitLab Workhorse are vulnerable to remote code execution. Workhorse passes image file extensions through ExifTool, which improperly validates the image files. (CISA description)
- Vendor / product
- GitLab Community and Enterprise Editions
- CWE
- CWE-20, CWE-95
- CISA required action
- Apply updates per vendor instructions.
- EPSS
- 100%, percentile 99 (scored 2026-11-03)
EPSS puts nearly every time in 100 odds (100%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 99% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2021-22205 in the CISA KEV catalogue?
Yes. CISA added CVE-2021-22205 (GitLab Community and Enterprise Editions Remote Code Execution Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2021-11-03. CISA's default due date for it is 2021-11-17.
Is CVE-2021-22205 used in ransomware attacks?
CISA marks known ransomware campaign use as Known for CVE-2021-22205.
What should I do about CVE-2021-22205?
CISA's required action: Apply updates per vendor instructions.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2021-22205