CVE-2026-71227

MediumCVSS 5.1/10Last modified Nov 2, 2026

Description

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.

Metrics

CVSS 3.1 5.1/10CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

Vendor	Product	Versions
Stephan Muelle	libkcapi	>= 0.12.0, < 1.5.1
Red Hat	Red Hat Enterprise Linux 10	—
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	—
Red Hat	Red Hat Enterprise Linux 8	—
Red Hat	Red Hat Enterprise Linux 9	—
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	—
Red Hat	Red Hat Hardened Images	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat OpenShift Container Platform 4	—
Red Hat	Red Hat OpenShift Container Platform 5	—

References

Timeline

Published: Aug 5, 2026
Last modified: Nov 2, 2026
NVD status: Modified

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