CVE-2026-43964

LLM-synthesized narrative grounded in this CVE's description and references.

• Postfix/Postfix2 versions

  cpe:2.3:a:postfix:postfix:*:*:*:*:*:*:*:*+ 1 more

  • cpe:2.3:a:postfix:postfix:*:*:*:*:*:*:*:*range: <3.8.16
  • (no CPE)range: <3.8.16, <3.9.10, <3.10.9
• osv-coords12 versions

  pkg:rpm/almalinux/postfixpkg:rpm/almalinux/postfix-cdbpkg:rpm/almalinux/postfix-ldappkg:rpm/almalinux/postfix-lmdbpkg:rpm/almalinux/postfix-mysqlpkg:rpm/almalinux/postfix-pcrepkg:rpm/almalinux/postfix-perl-scriptspkg:rpm/almalinux/postfix-pgsqlpkg:rpm/almalinux/postfix-sqlitepkg:rpm/opensuse/postfix&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/postfix&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/postfix-bdb&distro=openSUSE%20Leap%2016.0

  < 2:3.8.5-10.el10_2+ 11 more

  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 2:3.8.5-10.el10_2
  • (no CPE)range: < 3.10.2-160000.3.1
  • (no CPE)range: < 3.11.2-1.1
  • (no CPE)range: < 3.10.2-160000.3.1

• www.openwall.com/lists/oss-security/2026/05/04/30nvdMailing ListThird Party Advisory
• www.mail-archive.com/[email protected]/msg00110.htmlnvdMailing ListThird Party Advisory
• access.redhat.com/errata/RHSA-2026:25930nvd
• access.redhat.com/errata/RHSA-2026:25932nvd
• access.redhat.com/errata/RHSA-2026:26205nvd
• access.redhat.com/errata/RHSA-2026:50963nvd
• access.redhat.com/errata/RHSA-2026:50964nvd
• access.redhat.com/errata/RHSA-2026:51034nvd
• access.redhat.com/errata/RHSA-2026:51436nvd
• access.redhat.com/security/cve/CVE-2026-43964nvd
• bugzilla.redhat.com/show_bug.cginvd
• security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43964.jsonnvd

• Patch Tuesday - May 2026
  Rapid7 Blog · May 13, 2026