Bug 2494435

Summary:	CVE-2026-39833 prometheus-podman-exporter: golang.org/x/crypto/ssh/agent: Security bypass due to unenforced key confirmation [fedora-all]
Product:	[Fedora] Fedora	Reporter:	jkelly <jkelly>
Component:	prometheus-podman-exporter	Assignee:	Navid Yaghoobi <n.yaghoobi.s>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	45	CC:	go-sig, n.yaghoobi.s
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["28ae1c3c-f791-4399-96eb-f6f0b2d222a4"]}
Fixed In Version:	prometheus-podman-exporter-2.0.0-1.fc45	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-22 00:16:30 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:	2480683

Description jkelly 2026-06-29 15:31:33 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.

The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.

Comment 1 Aoife Moloney 2026-08-17 15:04:46 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Fedora Update System 2026-09-13 09:39:47 UTC

FEDORA-2026-8590121cf7 (prometheus-podman-exporter-2.0.0-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-8590121cf7

Comment 3 Fedora Update System 2026-09-14 01:29:20 UTC

FEDORA-2026-8590121cf7 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8590121cf7`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8590121cf7

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

Comment 4 Fedora Update System 2026-09-22 00:16:30 UTC

FEDORA-2026-8590121cf7 (prometheus-podman-exporter-2.0.0-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.