Overview
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.
https://nvd.nist.gov/vuln/detail/CVE-2021-22205
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2021-22205 |
| Vendor / Product | GitLab — Community and Enterprise Editions |
| NVD Published | 2021-04-23 |
| NVD Last Modified | 2025-10-24 |
| CVSS 3.1 Score | 10 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-94 |
| CISA KEV Added | 2021-11-03 |
| CISA KEV Deadline | 2021-11-17 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2021-11-17.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2021-11-03 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2021-11-17 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2021-22205 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |