CVE-2021-22205

GitLab Community and Enterprise Editions Remote Code Execution Vulnerability

n/a

CVSS

99.7%

EPSS (exploit prob.)

100.0%

EPSS percentile

Yes

Actively exploited

Yes

Ransomware use

2021-11-03

Added

MITRE ATT&CK techniques

How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.

Technique	Name	Relationship
T1190	Exploit Public-Facing Application	exploitation technique
T1059	Command and Scripting Interpreter	primary impact
T1498	Network Denial of Service	primary impact
T1496	Resource Hijacking	secondary impact
T1498	Network Denial of Service	secondary impact

Summary

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.

Affected software

Vendor: GitLab · Product: Community and Enterprise Editions

Weakness types (CWE):

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in GitLab

CVE	Name	EPSS	Exploited
CVE-2023-7028	GitLab Community and Enterprise Editions Improper Access Control Vulnerability	94.6%	Yes
CVE-2021-22175	GitLab Server-Side Request Forgery (SSRF) Vulnerability	53.4%	Yes
CVE-2021-39935	GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Vuln	35.6%	Yes

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