CVE-2026-57231

HIGH

7.5

CVSS v3

Description

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.

CWE-200Information Exposure CWE-668

How to fix

Remediation Available

podmanDebian

Fixed in:5.8.4+ds1-1CVE-2026-57231

aardvark-dns-2:1.10.1Rocky

Fixed in:2.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

aardvark-dns-2:1.10.1Red Hat / RHEL

Fixed in:2.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:2.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

buildah-2:1.33.14Rocky

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

buildah-2:1.33.14Red Hat / RHEL

Fixed in:4.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

buildah-debuginfo-2:1.33.14Red Hat / RHEL

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

buildah-debuginfo-2:1.33.14Rocky

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

buildah-debugsource-2:1.33.14Red Hat / RHEL

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

buildah-debugsource-2:1.33.14Rocky

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

buildah-tests-2:1.33.14Rocky

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

buildah-tests-2:1.33.14Red Hat / RHEL

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

buildah-tests-debuginfo-2:1.33.14Rocky

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

buildah-tests-debuginfo-2:1.33.14Red Hat / RHEL

Fixed in:4.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:4.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

cockpit-podman-0:84.1Rocky

Fixed in:1.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.noarch::container-tools:rhel8RHSA-2026:38504

cockpit-podman-0:84.1Red Hat / RHEL

Fixed in:1.module+el8.10.0+24510+6ea3880e.noarch::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

conmon-3:2.1.10Rocky

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

conmon-3:2.1.10Red Hat / RHEL

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

conmon-debuginfo-3:2.1.10Red Hat / RHEL

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

conmon-debuginfo-3:2.1.10Rocky

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

conmon-debugsource-3:2.1.10Rocky

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

conmon-debugsource-3:2.1.10Red Hat / RHEL

Fixed in:1.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:1.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

container-selinux-2:2.229.0Rocky

Fixed in:3.module+el8.10.0+24510+6ea3880e.noarch::container-tools:rhel8RHSA-2026:38504

Fixed in:3.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

container-selinux-2:2.229.0Red Hat / RHEL

Fixed in:3.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:3.module+el8.10.0+24510+6ea3880e.noarch::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-1:1.4.0Red Hat / RHEL

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-1:1.4.0Rocky

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-debuginfo-1:1.4.0Rocky

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-debuginfo-1:1.4.0Red Hat / RHEL

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-debugsource-1:1.4.0Rocky

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

containernetworking-plugins-debugsource-1:1.4.0Red Hat / RHEL

Fixed in:8.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

Fixed in:8.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

containers-common-2:1Red Hat / RHEL

Fixed in:82.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504

Fixed in:82.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504

Fixed in:82.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504

Fixed in:82.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504

Fixed in:82.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

Common questions

How do I fix CVE-2026-57231?

Published advisories record a fix for 169 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-57231 being actively exploited?

Not that we know of. CVE-2026-57231 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.31% is the estimated probability that it will be exploited in the next 30 days. That is higher than 23% of all scored CVEs.

How severe is CVE-2026-57231?

CVE-2026-57231 has a CVSS v3 base score of 7.5, rated important. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-57231 affect?

Published advisories record a fix for podman (Debian), aardvark-dns-2:1.10.1 (Rocky), aardvark-dns-2:1.10.1 (Red Hat / RHEL), buildah-2:1.33.14 (Rocky), and 165 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-57231

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-06.