7.4
High
github.com/containers/podman/v5

CVE-2025-4953

CVE-2025-4953 is a high-severity security vulnerability in github.com/containers/podman/v5 (go), affecting versions <= 5.5.0. No fixed version is listed yet.

Key facts
CVSS score
7.4
High
Attack vector
Network
Issuing authority
GitHub Advisory Database
Affected package
github.com/containers/podman/v5
Fixed in
Not available
Disclosed
2025

Summary

A flaw was found in Podman. In a Containerfile or Podman, data written to RUN --mount=type=bind mounts during the podman build is not discarded. This issue can lead to files created within the container appearing in the temporary build context directory on the host, leaving the created files accessible.

Impact

Severity and exposure

CVE-2025-4953 has a CVSS score of 7.4 (High). The vector is network-reachable, no 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.

No fixed version is listed yet, so configuration controls and monitoring matter more in the interim.

Affected versions

go

  • github.com/containers/podman/v5 (<= 5.5.0)

Security releases

Not available
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-2025-4953 is reachable in your applications. Explore open-source security for your team.

See if CVE-2025-4953 is reachable in your applications. Get a demo

Remediation advice

No fixed version is listed for CVE-2025-4953 yet.

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

Frequently asked questions about CVE-2025-4953

What is CVE-2025-4953?

CVE-2025-4953 is a high-severity security vulnerability in github.com/containers/podman/v5 (go), affecting versions <= 5.5.0. No fixed version is listed yet.

How severe is CVE-2025-4953?

CVE-2025-4953 has a CVSS score of 7.4 (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 versions of github.com/containers/podman/v5 are affected by CVE-2025-4953?

github.com/containers/podman/v5 (go) versions <= 5.5.0 is affected.

Is there a fix for CVE-2025-4953?

No fixed version is listed for CVE-2025-4953 yet. Monitor the advisory for updates and apply mitigations in the interim.

Is CVE-2025-4953 exploitable, and should I be worried?

Whether CVE-2025-4953 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-2025-4953 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.

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