CVE & CISA-KEV Catalog

CVE-2026-57231

HIGH
7.5
CVSS v3
NVD

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 ExposureCWE-668

How to fix

Remediation Available
podmanDebian
Fixed in:5.8.4+ds1-1CVE-2026-57231
aardvark-dns-2:1.10.1Red Hat / RHEL
Fixed in:2.module+el8.10.0+24510+6ea3880e.s390x::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.ppc64le::container-tools:rhel8RHSA-2026:38504
Fixed in:2.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504
Fixed in:2.module+el8.10.0+24510+6ea3880e.x86_64::container-tools:rhel8RHSA-2026:38504
aardvark-dns-2:1.10.1Rocky
Fixed in:2.module+el8.10.0+24510+6ea3880e.s390x::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.x86_64::container-tools:rhel8RHSA-2026:38504
Fixed in:2.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504
Fixed in:2.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504
buildah-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.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
buildah-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.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.x86_64::container-tools:rhel8RHSA-2026:38504
Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::container-tools:rhel8RHSA-2026:38504
buildah-debuginfo-2:1.33.14Red 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.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.s390x::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.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.ppc64le::container-tools:rhel8RHSA-2026:38504
buildah-debugsource-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.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
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.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.ppc64le::container-tools:rhel8RHSA-2026:38504
buildah-tests-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.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.s390x::container-tools:rhel8RHSA-2026:38504
buildah-tests-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.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.ppc64le::container-tools:rhel8RHSA-2026:38504
buildah-tests-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.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
buildah-tests-debuginfo-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.x86_64::container-tools:rhel8RHSA-2026:38504
Fixed in:4.module+el8.10.0+24510+6ea3880e.aarch64::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.src::container-tools:rhel8RHSA-2026:38504
Fixed in:1.module+el8.10.0+24510+6ea3880e.noarch::container-tools:rhel8RHSA-2026:38504
conmon-3:2.1.10Rocky
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.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.ppc64le::container-tools:rhel8RHSA-2026:38504
conmon-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.src::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
conmon-debuginfo-3:2.1.10Red Hat / RHEL
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
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
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.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.aarch64::container-tools:rhel8RHSA-2026:38504
conmon-debugsource-3:2.1.10Rocky
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.x86_64::container-tools:rhel8RHSA-2026:38504
Fixed in:1.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504
conmon-debugsource-3:2.1.10Red 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.s390x::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
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.noarch::container-tools:rhel8RHSA-2026:38504
Fixed in:3.module+el8.10.0+24510+6ea3880e.src::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.ppc64le::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
Fixed in:8.module+el8.10.0+24510+6ea3880e.src::container-tools:rhel8RHSA-2026:38504
containernetworking-plugins-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.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.src::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.x86_64::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.s390x::container-tools:rhel8RHSA-2026:38504
containernetworking-plugins-debuginfo-1:1.4.0Red Hat / RHEL
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
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
containernetworking-plugins-debugsource-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.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-1:1.4.0Rocky
Fixed in:8.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504
Fixed in:8.module+el8.10.0+24510+6ea3880e.x86_64::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.aarch64::container-tools:rhel8RHSA-2026:38504
containers-common-2:1Rocky
Fixed in:82.module+el8.10.0+24510+6ea3880e.s390x::container-tools:rhel8RHSA-2026:38504
Fixed in:82.module+el8.10.0+24510+6ea3880e.ppc64le::container-tools:rhel8RHSA-2026:38504
Fixed in:82.module+el8.10.0+24510+6ea3880e.aarch64::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

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
24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

Related Vulnerabilities

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

CVESeverityCVSSEPSSExploitedFix
CVE-2024-24919High8.6100%KEV + Ransom-
CVE-2020-14181Medium5.3100%-Fix
CVE-2021-34429Medium5.399%-Fix
CVE-2018-11409Medium5.398%--
CVE-2021-41277Critical10.097%KEV-
CVE-2016-2183High7.596%-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 24% 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 (Red Hat / RHEL), aardvark-dns-2:1.10.1 (Rocky), buildah-2:1.33.14 (Red Hat / RHEL), and 165 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2026-57231 severity badge

Markdown

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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.