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CVE-2026-57231

36
FAUCET Score

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.

First published: Jun 26, 2026Last modified: Jun 26, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.8.1, < 5.8.4CPE matchmatch criteria
cpe:2.3:a:podman_project:podman:*:*:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:podman_project:podman:6.0.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 6th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

microsoft2026-Jun/CVE-2026-57231Important

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

Jun 9, 2026

References

github.com / podman-container-tools/podman/commit/6c431b73dbf8e4b20b778644d7a80caebdb75050
Patch
github.com / podman-container-tools/podman/security/advisories/GHSA-4hq8-gpf5-8p68
PatchThird Party Advisory