Use After Free Affecting libkcapi-hmaccalc package, versions <0:1.4.0-3.el8_10


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-ALMALINUX8-LIBKCAPIHMACCALC-19821611
  • published15 Sept 2026
  • disclosed14 Sept 2026

Introduced: 14 Sep 2026

CVE-2026-71226  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 libkcapi-hmaccalc to version 0:1.4.0-3.el8_10 or higher.
This issue was patched in ALSA-2026:67266.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libkcapi-hmaccalc package and not the libkcapi-hmaccalc package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.

CVSS Base Scores

version 3.1