CVE-2026-73802 Details
Description
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.
A container-escape vulnerability has been identified in Gitea Runner versions prior to 3.0.0. When privileged mode is disabled, the runner allows workflow-controlled container options to be passed into the Docker job container configuration. This can enable access to host namespaces and execution of commands as root on the runner host, bypassing the intended container isolation. The vulnerability arises because, although privileged mode is forced false, host namespace settings, expanded capabilities, and security profile overrides can still be effective.
Users can upgrade to Gitea Runner version 3.0.0 or later, where this vulnerability has been addressed. Instructions for downloading the latest version are available on the Gitea Runner release page.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://blog.gitea.com/release-of-runner-3.0.0/ | Gitea Limited | Release NotesVendor |
| https://gitea.com/gitea/runner/releases/tag/v3.0.0 | Gitea Limited | Release NotesVendor |
| https://github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf | Gitea Limited | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-269 | Improper Privilege Management | Gitea Limited |
Affected Products
| Product | Versions |
|---|---|
| Gitea Runner | < 3.0.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 18, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | Gitea Limited |