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OpenAdvisories
High ALSA-2026:44438 1 CVE

Important: compat-openssl11 security update

Published Jul 23, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries from the 1.1.1 version and is provided for compatibility with previous releases.

Security Fix(es):

* openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
AlmaLinux · 9 compat-openssl11 1:1.1.1k-5.el9_8.4

Vulnerabilities 1

  • High 8.8
    CVE-2026-45447 Public exploit

    Heap Use-After-Free in the PKCS7_verify() Function

    Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-45447
  • report
    https://bugzilla.redhat.com/2481898
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-44438.html