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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-22205

GitLab Community and Enterprise Editions Remote Code Execution Vulnerability

KEVEXPLOITCRITICAL 10.0EPSS 99.7%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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.

CVSS 3.1
10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
99.73% probability · 100th percentile
Public exploits
1 in Exploit-DB · first 17 November 2021
CISA KEV
Listed 3 November 2021 · due 17 November 2021 · used in ransomware campaigns
Weakness
CWE-94
Affected
gitlab/gitlab
Source
cve@gitlab.com
EPSS trend
0%50%100%30 October 2026: 99.73%30 October 202630 October 2026

EPSS 99.7% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-22205

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-50532source ↗GitLab 13.10.2 - Remote Code Execution (RCE) (Unauthenticated)ruby · Jacob Baineswebapps17 November 2021no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.