CVE-2022-2251 : Improper sanitization of branch names in GitLab Runner affecting all versions pr

Improper sanitization of branch names in GitLab Runner affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2 allows a user who creates a branch with a specially crafted name and gets another user to trigger a pipeline to execute commands in the runner as that other user.

Published 2023-01-17 21:15:12

Updated 2025-04-08 19:15:46

Source GitLab Inc.

View at NVD, CVE.org

Products affected by CVE-2022-2251

Gitlab » Runner
Versions from including (>=) 15.4.0 and before (<) 15.4.4
cpe:2.3:a:gitlab:runner:*:*:*:*:*:*:*:*
Matching versions
Gitlab » Runner
Versions before (<) 15.3.5
cpe:2.3:a:gitlab:runner:*:*:*:*:*:*:*:*
Matching versions
Gitlab » Runner
Versions from including (>=) 15.5.0 and before (<) 15.5.2
cpe:2.3:a:gitlab:runner:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2022-2251

EPSS FAQ

8.34%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 91 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-2251

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.8	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N	1.2	3.6	GitLab Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: None Availability: None
8.0	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H	2.1	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2022-2251

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)

References for CVE-2022-2251

https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-2251.json

2022/CVE-2022-2251.json · master · GitLab.org / cves · GitLab
Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-runner/-/issues/27386

Command injection via branch name in CI pipelines. (#27386) · Issues · GitLab.org / gitlab-runner · GitLab
Exploit;Issue Tracking;Vendor Advisory
https://hackerone.com/reports/1063511

HackerOne
Permissions Required;Third Party Advisory

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Vulnerability Details : CVE-2022-2251

Products affected by CVE-2022-2251

Exploit prediction scoring system (EPSS) score for CVE-2022-2251

CVSS scores for CVE-2022-2251

CWE ids for CVE-2022-2251

References for CVE-2022-2251