Podman 1.8.1 < 5.8.4 / 6.0.0 Host Environment Variable Leak (GHSA-4hq8-gpf5-8p68)

high Nessus Plugin ID 325892

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Synopsis

A container management application installed on the remote host is affected by an information disclosure vulnerability.

Description

The version of Podman installed on the remote host is prior to 5.8.4 / 6.0.0. It is, therefore, affected by an information disclosure vulnerability.

- Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains an 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.
(CVE-2026-57231)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Podman version 5.8.4 / 6.0.0 or later.

Plugin Details

Severity: High

ID: 325892

File Name: podman_5_8_4.nasl

Version: 1.2

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 7/9/2026

Updated: 7/10/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.14

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-57231

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:podman_project:podman

Exploit Ease: No known exploits are available

Patch Publication Date: 6/24/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-57231

Detections

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