CVE-2026-71227
mediumA flaw was found in libkcapi.
Vendor / product: 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.
CVSS
5.1
5.1 (CVSS v3.1)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-08-05 13:24
Modified: 2026-11-02 06:17
NVD status: Modified
Last synced 1 day ago
Verified against the source API 2026-11-03 07:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
redhat / hardened_images all versions
redhat / openshift_container_platform 4.0
smuellerdd / libkcapi ≥0.12.0 <1.5.1
redhat / enterprise_linux 8.0, 9.0, 10.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://access.redhat.com/security/cve/CVE-2026-71227
Vendor advisory: https://bugzilla.redhat.com/show_bug.cgi?id=2462867
References
- https://access.redhat.com/errata/RHSA-2026:56985 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:67265 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:67266 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:67267 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:69285 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:87712 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-71227 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2462867 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 07:34 UTC · record ↗