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Vulnerabilities

Vulnerability · CVE-2026-57231

Podman is a tool for managing OCI containers and pods.

Published Jun 26, 2026 · catalog updated Oct 1, 2026 · Podman is a tool

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-57231. EPSS is 0.44%. Act only if a listed version of Podman is a tool is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Podman is a tool).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.44%
Remediation
Advisory link
Affected products
Debian:13 podman · Debian:14 podman

Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can exfiltrate all podman environment variables that are set in the session from where the container is launched. This vulnerability is fixed in 5.8.4 and 6.0.0.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:13 podman5.4.2+ds1-2, 5.6.1+ds1-1, 5.6.1+ds1-2
  • Debian:14 podman0 → 5.8.4+ds1-1

How to fix CVE-2026-57231

  • Upgrade

    CVE-2026-57231 lists a fix boundary at 5.8.4+ds1-1. Compare the installed build with that boundary before you change production.

  • Version check

    Fixed in 5.8.4+ds1-1 · 3 other ranges on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-57231. EPSS is 0.44%. Act only if a listed version of Podman is a tool is installed.

Which versions are affected?

Compare what you have installed with 5.4.2+ds1-2, 5.6.1+ds1-1, 5.6.1+ds1-2, 0 → 5.8.4+ds1-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 26, 2026 · Trivy Vulnerability DB

    Detected

    Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can

  2. Oct 1, 2026 · Trivy Vulnerability DB

    Fix available

    podman fixed in 5.8.4+ds1-1

  3. Oct 1, 2026 · Trivy Vulnerability DB

    Fix available

    podman fixed in 5.8.4+ds1-1

  4. Oct 1, 2026 · Trivy Vulnerability DB

    Updated

    Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can

Sources

  • CVE.orgVulnerability recordCVE-2026-57231

    Official CVE identifier

    cve.org
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-57231

    Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that usi

    osv.dev

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 26, 2026
  • Trivy Vulnerability DBOct 26, 2026