Gitea Runner host isolation bypass through container options
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.
CVE-2026-73802
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-73802
Gitea Runner
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Gitea",
"product": "Gitea Runner",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.0.0",
"versionType": "semver"
}
],
"packageName": "gitea.com/gitea/runner",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-73802
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34733 · Revision 1
- Added to Heist Feed
- Publisher date