Deadlock Affecting container-tools:rhel8/podman-plugins package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.32% (24th percentile)

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  • Snyk IDSNYK-RHEL8-CONTAINERTOOLS-19741138
  • published13 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

NewCVE-2026-78662  (opens in a new tab)
CWE-833  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 container-tools:rhel8/podman-plugins.

NVD Description

Note: Versions mentioned in the description apply only to the upstream container-tools:rhel8/podman-plugins package and not the container-tools:rhel8/podman-plugins package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time, handlePacket drops every packet other than the open confirmation/failure, without blocking and without tearing down the connection.

CVSS Base Scores

version 3.1