Use After Free The advisory has been revoked - it doesn't affect any version of package libkcapi-hmaccalc (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-LIBKCAPIHMACCALC-18557180
- published6 Aug 2026
- disclosed5 Aug 2026
Introduced: 5 Aug 2026
CVE-2026-71226 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
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 RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2462114
- https://access.redhat.com/security/cve/CVE-2026-71226
- https://access.redhat.com/errata/RHSA-2026:56985
- https://access.redhat.com/errata/RHSA-2026:67267
- https://access.redhat.com/errata/RHSA-2026:69285
- https://access.redhat.com/errata/RHSA-2026:67265
- https://access.redhat.com/errata/RHSA-2026:67266
- https://access.redhat.com/errata/RHSA-2026:87712