Use of Blocking Code in Single-threaded, Non-blocking Context Affecting satellite/iop-host-inventory-rhel9 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-RHEL7-SATELLITEIOPHOSTINVENTORYRHEL9-20123582
  • published24 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

NewCVE-2026-64847  (opens in a new tab)
CWE-1322  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 satellite/iop-host-inventory-rhel9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream satellite/iop-host-inventory-rhel9 package and not the satellite/iop-host-inventory-rhel9 package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, AnyIO starts process-pool workers with standard error connected to a pipe that the parent never drains, even though the documented behavior redirects all three standard streams. Worker code that writes enough attacker-influenced data to sys.stderr can fill the pipe and block before returning the standard-output protocol response, causing the awaiting process-pool call to remain blocked indefinitely. Applications that run untrusted or faulty worker code capable of producing substantial standard-error output are affected. This issue is fixed in version 4.14.2.

CVSS Base Scores

version 3.1