Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Fixed packages 2

Vulnerabilities 1

• High 7.4
  CVE-2026-42784

  Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

  A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the b…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 10 Red Hat OpenShift Container Platform 4 Linux Debian Ubuntu Azure Linux
  Sep 16, 2026

References

• article
  https://images.redhat.com/
• report
  https://access.redhat.com/security/cve/CVE-2026-42784
• article
  https://access.redhat.com/security/updates/classification/
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_42902.json
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2464122
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-42784
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-42784