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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-42784

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

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Status
Published
Published
Updated
Assigning organization
redhat

Description

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 back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9

Default version status: affected

  • 0:0.1.34-1.el9ap to < *unaffected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.10.2.1-1.el10_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.3.0.2-1.el10_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.4.0.1-2.el10_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:1.10.2.1-1.el9_8 to < *unaffected

Red Hat Red Hat Cost Management On-Premise 1

Default version status: affected

  • 1791460851 to < *unaffected

Red Hat Red Hat Hardened Images

Default version status: affected

  • 0.3.2-4.hum1 to < *unaffected

Red Hat Confidential Compute Attestation

Default version status: affected

Red Hat Confidential Compute Attestation

Default version status: affected

Red Hat Confidential Compute Attestation

Default version status: affected

Red Hat Confidential Compute Attestation

Default version status: affected

Red Hat Confidential Compute Attestation

Default version status: affected

Red Hat Red Hat Ansible Automation Platform 2

Default version status: affected

Red Hat Red Hat Ansible Automation Platform 2

Default version status: affected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

Red Hat Red Hat Enterprise Linux 10

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

Red Hat Red Hat Hardened Images

Default version status: affected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: affected

Red Hat Red Hat Satellite 6

Default version status: affected

Red Hat Red Hat Satellite 6

Default version status: affected

Red Hat Red Hat Trusted Profile Analyzer

Default version status: affected

Red Hat Red Hat Trusted Profile Analyzer

Default version status: unaffected

References