Astra Linux – Vulnerability in Thunderbird

An attacker may carry out a DoS attack to prevent a user from sending encrypted emails to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self-signature, and the Thunderbird user imports the crafted key, then Thunderbird may attempt to use the inval...

CVE-2026-71886

A flaw was found in Bouncy Castle. The OpenPGP certificate application programming interface API fails to verify whether a subkey possesses certification authority before validating third-party certifications or trust delegations. An attacker in possession of a restricted signing or encryption...

CVE-2026-71887

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

DEBIAN-CVE-2026-71887

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

UBUNTU-CVE-2026-71887

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

CVE-2026-71886 OpenPGP certification accepted from a subkey without certification authority

In Bouncy Castle for Java before 1.86, the high-level OpenPGP certificate API accepted a third-party certification or trust delegation from any component key of the issuing certificate, without requiring that component to have been granted the authority to certify...

CVE-2026-71886 OpenPGP certification accepted from a subkey without certification authority

In Bouncy Castle for Java before 1.86, the high-level OpenPGP certificate API accepted a third-party certification or trust delegation from any component key of the issuing certificate, without requiring that component to have been granted the authority to certify...

CVE-2026-71886 OpenPGP certification accepted from a subkey without certification authority

In Bouncy Castle for Java before 1.86, the high-level OpenPGP certificate API accepted a third-party certification or trust delegation from any component key of the issuing certificate, without requiring that component to have been granted the authority to certify...

CVE-2026-71887

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

CVE-2026-71887 OpenPGP data signature accepted from a signing subkey without cross-certification

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

EUVD-2026-91993

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

CVE-2026-71887 OpenPGP data signature accepted from a signing subkey without cross-certification

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

CVE-2026-71887 OpenPGP data signature accepted from a signing subkey without cross-certification

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

CVE-2026-71887

The Bouncy Castle for Java high-level OpenPGP API (versions before 1.86 ) contains a vulnerability where it accepts data signatures from signing subkeys that lack a required embedded Primary Key Binding signature when the Key Flags subpacket is omitted. The flaw stems from inconsistent logic in O...

CVE-2026-71887: Improper Verification of Cryptographic Signature

In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no embedded Primary Key Binding cross-certification signature, in the case where that binding omits a Key Flags subpacket. RFC 9580 sec...

PT-2026-104560

Name of the Vulnerable Software and Affected Versions Bouncy Castle for Java versions prior to 1.86 Description The high-level OpenPGP API incorrectly accepts data signatures from a signing subkey when the Subkey Binding signature lacks an embedded Primary Key Binding cross-certification signatur...

AlmaLinux 9.2 [TuxCare] Security Update: gnupg2 / gnupg2-smime (ALMALINUX9.2:CLSA-2026:1774612633)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1774612633 advisory. - In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has...

AlmaLinux 9.6 [TuxCare] Security Update: gnupg2 / gnupg2-smime (ALMALINUX9.6:CLSA-2026:1775119189)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1775119189 advisory. - In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has...

AlmaLinux 9.2 [TuxCare] Security Update: munge / munge-devel / munge-libs (ALMALINUX9.2:CLSA-2026:1772571803)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1772571803 advisory. - MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer...

Rocky Linux 9.6 [TuxCare] Security Update: gnupg2 / gnupg2-smime (ALMALINUX9.6:CLSA-2026:1775119189)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1775119189 advisory. - In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has...