CVE-2021-22205

CRITICAL
10
CVSS Score
Published: April 23, 2021 at 05:39 PM UTC
Updated: August 6, 2026 at 05:16 AM UTC
1 product affected across 1 vendorGitLab

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Severity
CRITICAL10
Exploitation
CISA KEV
Exploit prediction
EPSS 100%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score99.7%

EPSS (Exploit Prediction Scoring System) estimates a 99.7% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Nov 3, 2021
Remediation Due
Nov 17, 2021
1810 days overdue

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.9. GitLab was not properly validating image files that were passed to a file parser which resulted in a remote command execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 13.10.3v < 13.8.8v < 13.9.611.9.0 ≤ v < 13.8.813.10.0 ≤ v < 13.10.313.9.0 ≤ v < 13.9.6
Affected range stops below 13.10.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.8.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.9.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

10CRITICALGitLab
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-94

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