Bug 2495099

Summary: CVE-2026-57231 podman-tui: Podman: Information disclosure via malicious container image environment variables [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Jon Moroney <jmoroney>
Component: podman-tuiAssignee: Navid Yaghoobi <n.yaghoobi.s>
Status: ON_QA --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: go-sig, n.yaghoobi.s
Target Milestone: ---Keywords: Reopened, Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["302c10e4-22d9-4a20-a35b-5dab5b7e5f48"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-09-07 05:56:05 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2493620    

Description Jon Moroney 2026-06-30 18:49:16 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 Fedora Update System 2026-09-06 04:24:16 UTC 
FEDORA-EPEL-2026-aa36b10495 (podman-tui-2.0.0-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-aa36b10495
Comment 2 Fedora Update System 2026-09-07 01:15:41 UTC 
FEDORA-EPEL-2026-aa36b10495 has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-aa36b10495

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.