VulnerabilityModified

CVE-2026-71227

A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface.

MEDIUM 5.1EPSS 0.16%

Does this matter?

Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.

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: 5.1 MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.16% probability · 6th percentile
CISA KEV: Not listed
Weakness: CWE-835
Affected: redhat/hardened images · redhat/openshift container platform · smuellerdd/libkcapi · redhat/enterprise linux
Source: secalert@redhat.com

References

https://access.redhat.com/errata/RHSA-2026:56985
https://access.redhat.com/security/cve/CVE-2026-71227Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2462867Exploit, Issue Tracking, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.