Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-58053— Gitea act_runner - Container Hardening Bypass via Workflow Container Options

Quick assessment

Affected
Gitea act_runner
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gitea是Gitea组织开源的一个基于Go开发的轻量型git服务。 Gitea 0.262.0及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于将工作流的container.options字符串传递给Docker任务容器HostConfig时，在privileged: false配置下仅关闭Privileged标志，而未改变--pid=host、--cap-add和--security-opt等选项的合并处理，可能导致能够在Docker后端运行工作流的用户创建具有主机命名空间和广泛权限的任务容器，并在

CVSS 9.9 · Critical EPSS 0.44% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gitea act_runner ≤ 0.262.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-58053

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Gitea act_runner - Container Hardening Bypass via Workflow Container Options
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Gitea 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gitea是Gitea组织开源的一个基于Go开发的轻量型git服务。 Gitea 0.262.0及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于将工作流的container.options字符串传递给Docker任务容器HostConfig时，在privileged: false配置下仅关闭Privileged标志，而未改变--pid=host、--cap-add和--security-opt等选项的合并处理，可能导致能够在Docker后端运行工作流的用户创建具有主机命名空间和广泛权限的任务容器，并在
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gitea act_runner 0 ~ 0.262.0 -

II. Public POCs for CVE-2026-58053

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 12672 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-58053

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-58053 (1)

Proof of Concept for CVE-2026-58053 (1)

IV. Related Vulnerabilities

Same vendor: Gitea
Same weakness: CWE-269

V. Comments for CVE-2026-58053

No comments yet

Leave a comment