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CVE-2026-57231

Podman: Malformed Image can trick podman run into leaking host environment variables into the container

Published: Jun 26, 2026Updated: Jul 6, 2026 Sources: CVE List NVDCWE-200
7.5HIGH
NVD MITRE
EPSS Score
0.3%
Top 76.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200CWE-668

Affected Products

podman-container-tools
oss-project
podmanLibrary
OSS Libraries / generic-library
podman project
oss-project·USaka podman
podmanOn-prem
Cloud & SaaS / container-orchestration

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/podman-container-tools/podman/security/advisories/GHSA-4hq8-gpf5-8p68
github.com
https://github.com/podman-container-tools/podman/commit/6c431b73dbf8e4b20b778644d7a80caebdb75050
github.com

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