CVE-2026-71227: A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output…

CVE-2026-71227 · Severity: medium · CVSS 5.1 · Published 2026-08-05

A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

Technologies: Redhat Enterprise Linux, Redhat Hardened Images, Redhat Openshift Container Platform, Smuellerdd Libkcapi. Vendors: Redhat, Smuellerdd.

Quick answers

Is CVE-2026-71227 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-71227 being exploited in the wild.
How severe is CVE-2026-71227?
Medium severity, with a CVSS score of 5.1, published 5 August 2026.
Which products and versions are affected?
Redhat Enterprise Linux, Redhat Hardened Images, Redhat Openshift Container Platform, Smuellerdd Libkcapi. The advisory does not name versions.
Is there a fix for CVE-2026-71227?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-71227?
Check whether you run Redhat Enterprise Linux, Redhat Hardened Images, Redhat Openshift Container Platform or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Redhat Enterprise Linux
  • Redhat Hardened Images
  • Redhat Openshift Container Platform
  • Smuellerdd Libkcapi

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