Bug 2509400 - CVE-2026-39831 podman-tui: golang.org/x/crypto/ssh: Security key bypass due to missing user presence check [epel-all]
Summary: CVE-2026-39831 podman-tui: golang.org/x/crypto/ssh: Security key bypass due t...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: podman-tui
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Navid Yaghoobi
QA Contact:
URL:
Whiteboard: {"flaws": ["1537af73-e36d-4a46-a18e-3...
Depends On:
Blocks: CVE-2026-39831
TreeView+ depends on / blocked
 
Reported: 2026-07-30 14:28 UTC by Guilherme de Almeida Suckevicz
Modified: 2026-09-14 00:42 UTC (History)
2 users (show)

Fixed In Version: podman-tui-2.0.0-1.el10_4
Clone Of:
Environment:
Last Closed: 2026-09-14 00:42:18 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2026-07-30 14:28:35 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 Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256, sk-ssh-ed25519) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.
Comment 1 Fedora Update System 2026-09-06 04:24:28 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 01:15:50 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.
Comment 3 Fedora Update System 2026-09-14 00:42:18 UTC 
FEDORA-EPEL-2026-aa36b10495 (podman-tui-2.0.0-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.
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