CVE-2026-71891: Improper Verification of Cryptographic Signature

In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that gate on it, accepted a public key built on a foreign ECCurve that merely shares BLS12-381's field...

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...

CVE-2026-100149: Exposure of Sensitive Information to an Unauthorized Actor

The WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.7.3 via the 'x-yamidoo-signature attacker-obtained via inlinejs identify payload' parameter. This makes it possible...

Security Bulletin: Vulnerability in golang.org/x/mod bundled with IBM Fusion and IBM Fusion HCI

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Data Cataloging include the golang.org/x/mod library, which is affected by multiple vulnerabilities, including Improper verification of cryptographic signatures and integrity verification bypass. CVE-2026-56864, CVE-2026-56865. Vulnerability...

CVE-2026-104437

Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASHSINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts an...

CVE-2026-104437

Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASHSINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts an...

EUVD-2026-91447

Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASHSINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts an...

CVE-2026-104437

The Zebra node (versions before 4.4.0 ) is vulnerable to a consensus divergence vulnerability in V5 transparent signature verification. The root cause is that Zebra computes a ZIP-244 digest for SIGHASH_SINGLE inputs that lack corresponding outputs instead of failing, whereas zcashd correctly rej...

CVE-2026-86326

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provi...

Security update for openssl-3

This update for openssl-3 fixes the following issues: CVE-2026-35189: Excessive Memory Allocation in Relative CRLDP Processing bsc1280589. CVE-2026-54872: Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves bsc1280591. CVE-2026-75805: NULL Pointer Dereference in CMP Client...

CVE-2026-86326

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provi...

EUVD-2026-91373

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provi...

CVE-2026-86326

An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface could provi...

CVE-2026-86326

A vulnerability exists in protocol gateways due to an improper verification of cryptographic signatures . The device fails to verify the cryptographic authenticity of firmware images before installation. An attacker with high privileges and access to the firmware update interface can provide a sp...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in PkixAttrCertPathValidator and PkixAttrCertPathBuilder. An attacker can have a forged X.509 attribute certificate accepted as valid by supplying a certificate that names a trusted...

CVE-2026-103603

Memory allocation with excessive size value in the HSS/LMS signature code HssPublicKeyParameters, HssSignature in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker who can supply both an HSS public key and a signature to cause a denial of service...

CVE-2026-103603

Memory allocation with excessive size value in the HSS/LMS signature code HssPublicKeyParameters, HssSignature in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker who can supply both an HSS public key and a signature to cause a denial of service...

CVE-2026-103603 Unbounded HSS public key level count allows huge array allocation during signature verification

Memory allocation with excessive size value in the HSS/LMS signature code HssPublicKeyParameters, HssSignature in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker who can supply both an HSS public key and a signature to cause a denial of service...

CVE-2026-103603 Unbounded HSS public key level count allows huge array allocation during signature verification

Memory allocation with excessive size value in the HSS/LMS signature code HssPublicKeyParameters, HssSignature in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker who can supply both an HSS public key and a signature to cause a denial of service...

CVE-2026-103603 Unbounded HSS public key level count allows huge array allocation during signature verification

Memory allocation with excessive size value in the HSS/LMS signature code HssPublicKeyParameters, HssSignature in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker who can supply both an HSS public key and a signature to cause a denial of service...