CVE-2026-58053 (GCVE-0-2026-58053)

Vulnerability from cvelistv5 – Published: 2026-06-28 01:32 – Updated: 2026-06-30 14:12
VLAI
Title
Gitea act_runner - Container Hardening Bypass via Workflow Container Options
Summary
Gitea act_runner with the Docker backend (through act 0.262.0) passes a workflow's container.options string to the Docker job container's HostConfig and, when configured with privileged: false, forces only the Privileged flag off while merging options such as --pid=host, --cap-add, and --security-opt unchanged. A user who can run a workflow on a Docker-backed runner can create a job container with host namespaces and broad capabilities and escape to the host as root despite privileged mode being disabled.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 14:12 UTC
CWE
  • CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
Vendor Product Version CPE status
Gitea act_runner Affected: 0 , ≤ 0.262.0 (semver)
guessed Create a notification for this product.
Date Public
2026-06-23 00:00
Credits
ashdfrkl
Show details on NVD website
To clipboard 

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Nomenclature

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