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CVE-2026-55686— Podman: WORKDIR symlink traversal vulnerability

Quick assessment

Affected
podman-container-tools podman
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Podman是Podman组织开源的一款用于在Linux系统上开发、管理和运行OCI容器的引擎。 Podman 3.0.0版本至5.7.1之前版本存在后置链接漏洞，该漏洞源于WORKDIR路径中包含符号链接，可能导致在主机文件系统上创建目录或修改所有权，触发竞争条件。

CVSS 5.3 · Medium EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1610 · Deploy Container

Affected Version Matrix 1

VendorProduct Version RangeStatus
podman-container-tools podman >= 3.0.0, < 5.7.1 affected
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I. Basic Information for CVE-2026-55686

Vulnerability Information
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Vulnerability Title
Podman: WORKDIR symlink traversal vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Podman is a tool for managing OCI containers and pods. From 3.0.0 until 5.7.1, running a malicious container image where the WORKDIR path contains a symlink can create a directory or modify ownership on the host filesystem. Modified ownership is less likely to happen as that requires help from an untrusted/malicious process that mutates the host filesystem tree during dereferencing of the WORKDIR path, to trigger a race condition. This vulnerability is fixed in 5.7.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
Podman 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Podman是Podman组织开源的一款用于在Linux系统上开发、管理和运行OCI容器的引擎。 Podman 3.0.0版本至5.7.1之前版本存在后置链接漏洞，该漏洞源于WORKDIR路径中包含符号链接，可能导致在主机文件系统上创建目录或修改所有权，触发竞争条件。
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
podman-container-tools podman >= 3.0.0, < 5.7.1 -

II. Public POCs for CVE-2026-55686

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III. Intelligence Information for CVE-2026-55686

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Patches & Fixes for CVE-2026-55686 (1)

Vendor Advisories for CVE-2026-55686 (1)

IV. Related Vulnerabilities

Same product: podman
Same vendor: podman-container-tools
Same weakness: CWE-61

V. Comments for CVE-2026-55686

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