8.1
High
github.com/containers/podman/v5

CVE-2025-9566

CVE-2025-9566 is a high-severity path traversal vulnerability in github.com/containers/podman/v5 (go), affecting versions <= 5.6.0. It is fixed in 5.6.1.

Key facts
CVSS score
8.1
High
Attack vector
Network
Issuing authority
GitHub Advisory Database
Affected package
github.com/containers/podman/v5
Fixed in
5.6.1
Disclosed
2025

Summary

Impact The podman kube play command can overwrite host files when the kube file contains a ConfigMap or Secret volume mount and the volume already contains a symlink to a host file. This allows a malicious container to write to arbitrary files on the host BUT the attacker only controls the target path not the contents that will be written to the file. The contents are defined in the yaml file by the end user. Requirements to exploit: podman kube play must be used with a ConfigMap or Secret volume mount AND must be run more than once on the same volume. All the attacker has to do is create the malicious symlink on the volume the first time it is started. After that all following starts would follow the symlink and write to the host location. Patches Fixed in podman v5.6.1 https://github.com/containers/podman/commit/43fbde4e665fe6cee6921868f04b7ccd3de5ad89 Workarounds Don't use podman kube play with ConfigMap or Secret volume mounts. PR with test for CI Adding on 9/8/2025 by @TomSweeneyRedHat , this is the PR containing the test in CI: https://github.com/containers/podman/pull/27001

Impact

What is path traversal?

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

Severity and exposure

CVE-2025-9566 has a CVSS score of 8.1 (High). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.

A fixed version is available (5.6.1). Upgrading removes the vulnerable code path.

Affected versions

go

  • github.com/containers/podman/v5 (<= 5.6.0)
  • github.com/containers/podman/v4 (<= 4.9.5)

Security releases

  • github.com/containers/podman/v5 → 5.6.1 (go)
Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter instead of chasing every advisory.

Kodem's runtime-powered SCA identifies whether CVE-2025-9566 is reachable in your applications. Explore open-source security for your team.

See if CVE-2025-9566 is reachable in your applications. Get a demo

Remediation advice

Upgrade github.com/containers/podman/v5 to 5.6.1 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently asked questions about CVE-2025-9566

What is CVE-2025-9566?

CVE-2025-9566 is a high-severity path traversal vulnerability in github.com/containers/podman/v5 (go), affecting versions <= 5.6.0. It is fixed in 5.6.1. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.

How severe is CVE-2025-9566?

CVE-2025-9566 has a CVSS score of 8.1 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which packages are affected by CVE-2025-9566?
  • github.com/containers/podman/v5 (go) (versions <= 5.6.0)
  • github.com/containers/podman/v4 (go) (versions <= 4.9.5)
Is there a fix for CVE-2025-9566?

Yes. CVE-2025-9566 is fixed in 5.6.1. Upgrade to this version or later.

Is CVE-2025-9566 exploitable, and should I be worried?

Whether CVE-2025-9566 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo

What actually determines whether CVE-2025-9566 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

How do I fix CVE-2025-9566?

Upgrade github.com/containers/podman/v5 to 5.6.1 or later.

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