CVE-2026-73802

Gitea Runner passes workflow-controlled container options into Docker job container configuration while privileged mode is disabled. Host namespace settings, expanded capabilities, and security profile overrides can remain effective despite Privileged being forced false. A workflow author able to run jobs on an affected Docker-backed runner can use these options to access host namespaces and execute commands as root on the runner host, bypassing the intended container isolation.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.gitea.com/release-of-runner-3.0.0/
https://gitea.com/gitea/runner/releases/tag/v3.0.0
https://github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf

Configurations

No configuration.

History

18 Oct 2026, 14:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

14 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 15:17

Updated : 2026-10-18 14:16

NVD link : CVE-2026-73802

Mitre link : CVE-2026-73802

CVE.ORG link : CVE-2026-73802

JSON object : View

Products Affected

No product.

CWE

CWE-269

Improper Privilege Management

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