High 7.4Published Sep 16, 2026

CVE-2026-42784Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

Updated under an hour ago (Oct 27, 2026, 12:10 PM ET)

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It affects Red Hat Ansible Automation Platform 2.6 for RHEL 9 and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Ansible Automation Platform 2.6 for RHEL 9

Exploited in the last 30 days

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.

CVSS: 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Weakness (CWE): CWE-347
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 redhat:ansible_automation_platform	from 0:0.1.34-1.el9ap not affected	CNA record
Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 redhat:ansible_automation_platform_developer	from 0:0.1.34-1.el9ap not affected	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:1.10.2.1-1.el10_2 not affected	CNA record
Red Hat Red Hat Cost Management On-Premise 1 redhat:cost_management_on_premise	from 1791460851 not affected	CNA record
Red Hat Red Hat Hardened Images redhat:hummingbird	from 0.3.2-4.hum1 not affected	CNA record
Red Hat Confidential Compute Attestation redhat:confidential_compute_attestation	1	CNA record
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift	4	CNA record
Red Hat Red Hat Satellite 6 redhat:satellite	6	CNA record
Red Hat Red Hat Trusted Profile Analyzer redhat:trusted_profile_analyzer	2	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:34160	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:42078	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:42902	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:76733	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:76734	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:76735	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:76737	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:79357	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-42784	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2464122	issue-tracking, x-refsource-redhat

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.