CVE-2026-58053
published 2026-06-28CVE-2026-58053: 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…
PriorityP260critical9.9CVSS 3.1
AVNACLPRLUINSCCHIHAH
EPSS
0.27%
17.8th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gitea | act_runner | <= 0.262.0 | — |
CVSS provenance
nvdv3.19.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv4.09.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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GHSA
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
ghsa_unreviewed·2026-06-28
CVE-2026-58053 [CRITICAL] CWE-269 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
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.
VulDB
Gitea act_runner up to 0.262.0 Docker Backend privileges management (EUVD-2026-39973)
vuldb·2026-06-28·CVSS 9.9
CVE-2026-58053 [CRITICAL] Gitea act_runner up to 0.262.0 Docker Backend privileges management (EUVD-2026-39973)
A vulnerability, which was classified as critical, was found in Gitea act_runner up to 0.262.0. The impacted element is an unknown function of the component Docker Backend. The manipulation results in improper privilege management.
This vulnerability is reported as CVE-2026-58053. The attack can be launched remotely. Moreover, an exploit is present.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-28
Published