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CVE-2026-42784

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

CVSS 3.1 7.4 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 4 Nov 2026 23:54:02 UTC. Read the latest advisory.

cve-program · CVE-2026-42784

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-42784

Published

python3.12-pysequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "python3.12-pysequoia",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:0.1.34-1.el9ap",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:ansible_automation_platform:2.6::el9",
                        "cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9"
                    ]
                }

rust-rpm-sequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rust-rpm-sequoia",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:1.10.2.1-1.el10_2",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10.2"
                    ]
                }

rust-sequoia-sqv

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rust-sequoia-sqv",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:1.3.0.2-1.el10_2",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10.2"
                    ]
                }

rust-sequoia-sq

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rust-sequoia-sq",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:1.4.0.1-2.el10_2",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10.2"
                    ]
                }

rust-rpm-sequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rust-rpm-sequoia",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:1.10.2.1-1.el9_8",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:9::crb",
                        "cpe:/o:redhat:enterprise_linux:9::baseos"
                    ]
                }

costmanagement/costmanagement-ui-rhel10

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Cost Management On-Premise 1",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "costmanagement/costmanagement-ui-rhel10",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1791460851",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:cost_management_on_premise:1::el10"
                    ]
                }

rust-podman-sequoia-main

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "rust-podman-sequoia-main",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0.3.2-4.hum1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

rust-rpm-sequoia-main

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Hardened Images",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "rust-rpm-sequoia-main",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "1.10.3-0.3.hum1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:hummingbird:1"
                    ]
                }

openshift-sandboxed-containers/osc-monitor-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Confidential Compute Attestation",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-sandboxed-containers/osc-monitor-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:confidential_compute_attestation:1"
                    ]
                }

openshift-sandboxed-containers/osc-operator-bundle

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Confidential Compute Attestation",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-sandboxed-containers/osc-operator-bundle",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:confidential_compute_attestation:1"
                    ]
                }

openshift-sandboxed-containers/osc-podvm-builder-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Confidential Compute Attestation",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-sandboxed-containers/osc-podvm-builder-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:confidential_compute_attestation:1"
                    ]
                }

openshift-sandboxed-containers/osc-podvm-payload-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Confidential Compute Attestation",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-sandboxed-containers/osc-podvm-payload-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:confidential_compute_attestation:1"
                    ]
                }

openshift-sandboxed-containers/osc-rhel9-operator

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Confidential Compute Attestation",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-sandboxed-containers/osc-rhel9-operator",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:confidential_compute_attestation:1"
                    ]
                }

ansible-automation-platform-26/hub-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Ansible Automation Platform 2",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "ansible-automation-platform-26/hub-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:ansible_automation_platform:2"
                    ]
                }

ansible-automation-platform-27/hub-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Ansible Automation Platform 2",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "ansible-automation-platform-27/hub-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:ansible_automation_platform:2"
                    ]
                }

rust-podman-sequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rust-podman-sequoia",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:10"
                    ]
                }

trustee

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "trustee",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:10"
                    ]
                }

trustee-guest-components

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "trustee-guest-components",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:10"
                    ]
                }

trustee-guest-components

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "trustee-guest-components",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:9"
                    ]
                }

kata-containers

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "kata-containers",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

python3.12-pysequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Satellite 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "python3.12-pysequoia",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:satellite:6"
                    ]
                }

python-pysequoia

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Satellite 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "python-pysequoia",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:satellite:6"
                    ]
                }

rhtpa/rhtpa-trustification-service-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Trusted Profile Analyzer",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rhtpa/rhtpa-trustification-service-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:trusted_profile_analyzer:2"
                    ]
                }

rhtpa/rhtpa-rhel10

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Trusted Profile Analyzer",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rhtpa/rhtpa-rhel10",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:trusted_profile_analyzer:3"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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