CVE-2026-42784

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...

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 back-signature check. Consequently, an...

CVE-2026-42784

sequoia-openpgp , a Rust library implementing the OpenPGP standard, incorrectly infers key flags for older certificates when a key flags subpacket is missing . This key flag confusion allows an attacker to bypass the back-signature check , illegitimately bind an arbitrary subkey to their own cert...

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 back-signature check. Consequently, an...

CVE-2026-42784

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...

Security Bulletin: IBM Sterling Global Availability Mailbox is affected by vulnerabilities in bouncy castle 1.84

Summary Bouncy Castle for Java before 1.85 was affected with the following CVE's.CVE-2026-12817, CVE-2026-59640, CVE-2026-59643, CVE-2026-59648, CVE-2026-59649 Vulnerability Details CVEID:CVE-2026-12817 DESCRIPTION: In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on...

CVE-2026-42784: Improper Verification of Cryptographic Signature

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...

PT-2026-105037

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...

Security Bulletin: Multiple vulnerabilities in IBM Rational Developer for i

Summary IBM Rational Developer for i is affected by an improper validation vulnerability in Bcpkix CVE-2025-12802, an allocation of resources without limits vulnerability in Bcpkix CVE-2026-13586, an allocation of resources without limits vulnerability in Bcpkix CVE-2026-15055, an improper...

Astra Linux – Vulnerability in Thunderbird

Certain crafted MIME email messages that claimed to contain encrypted OpenPGP messages actually contained an OpenPGP-signed message. These messages were incorrectly displayed as encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8...

Astra Linux – Vulnerability in Thunderbird

OpenPGP secret keys that were imported using Thunderbird versions 78.8.1 up to 78.10.1 were stored unencrypted on the user’s local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automaticall...

Astra Linux – Vulnerability in Thunderbird

An OpenPGP digital signature includes information about the date when the signature was created. When displaying an email that contains a digital signature, the email’s date will be displayed. If the dates are different, then Thunderbird does not report the email as having an invalid signature. I...

Security Bulletin: IBM webMethods Integration is affected by multiple vulnerabilities

Summary Vulnerabilities have been addressed in IBM webMethods Integration. Vulnerability Details CVEID:CVE-2026-12817 DESCRIPTION: In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This issue also affects Bouncy Castle for Java LTS before 2.73.1...

CVE-2026-59643

A flaw was found in Bouncy Castle for Java and Bouncy Castle for Java FIPS BC-FJA. This vulnerability allows an attacker to bypass OpenPGP inline-signature policy failures, which are silently ignored by the software. This silent disregard of policy failures can lead to a compromise of data...

Security Bulletin: The IBM SPSS Collaboration and Deployment Services impacted by multiple vulnerabilities in Bouncy Castle for Java

Summary he IBM SPSS Collaboration and Deployment Services impacted by multiple vulnerabilities in Bouncy Castle for Java. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2026-59640 DESCRIPTION: In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check orac...

GNU Privacy Guard 2.5.22

GnuPG the GNU Privacy Guard or GPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440. As suc...

CVE-2026-12817

A flaw was found in Bouncy Castle for Java. This vulnerability affects the OpenPGP Authenticated Encryption with Associated Data AEAD decryption process. Specifically, the system fails to verify the final authentication tag when processing data that is aligned in chunks. This oversight could allo...

Improper Verification Of Cryptographic Signature

Bouncy Castle is vulnerable to Improper Verification of Cryptographic Signature. The vulnerability is due to OpenPGP AEAD decryption failing to verify the final authentication tag for chunk-aligned data, which allows an attacker to modify encrypted data without detection and potentially bypass...

CVE-2026-59649

A flaw was found in Bouncy Castle for Java. The software's processing of OpenPGP user-attribute subpackets does not properly limit their length, bounding them only by the Java Virtual Machine JVM maximum memory. A remote attacker could exploit this by sending a specially crafted OpenPGP message,...

CVE-2026-59640

A flaw was found in Bouncy Castle for Java. A remote attacker can exploit an OpenPGP Open Pretty Good Privacy Cipher Feedback CFB quick-check oracle vulnerability. This oracle, active on symmetric and session-key paths, could allow an attacker to gain sensitive information by observing the result...