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Vulnerability record · CVE-2026-71227 · published 5 August 2026

CVE-2026-71227: Redhat hardened images vulnerability

Redhat · Hardened Images

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.

5.1 CVSS 3.1 Medium EPSS 0.17% · top 95.0% CWE-835 · CWE-835
5.1CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
7References, 1 tagged exploit
21 Sep 2026Last modified by NVD

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.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:56985
https://access.redhat.com/errata/RHSA-2026:67265
https://access.redhat.com/errata/RHSA-2026:67266
https://access.redhat.com/errata/RHSA-2026:67267
https://access.redhat.com/errata/RHSA-2026:69285
https://access.redhat.com/security/cve/CVE-2026-71227 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2462867 ExploitIssue TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-71227), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.