18911 matches found
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
In Legion of the Bouncy Castle Inc. bc-csharp before version 2.7.0 , a memory allocation vulnerability exists in the HSS/LMS signature code (HssPublicKeyParameters , HssSignature ). An unauthenticated remote attacker can trigger a denial of service via memory exhaustion by providing an HSS public...
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-2026-63571 Attribute certificate path validation does not verify the attribute certificate's signature
Improper verification of cryptographic signature in the attribute certificate path validator PkixAttrCertPathValidator, also used by PkixAttrCertPathBuilder in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker to have a forged X.509 attribute certificate accepted as...
CVE-2026-63571
The bc-csharp library by Legion of the Bouncy Castle Inc. is vulnerable to improper verification of cryptographic signatures in the attribute certificate path validator (PkixAttrCertPathValidator , also used by PkixAttrCertPathBuilder ) in versions before 2.7.0 . The root cause is that RFC 3281 v...
CVE-2026-63571 Attribute certificate path validation does not verify the attribute certificate's signature
Improper verification of cryptographic signature in the attribute certificate path validator PkixAttrCertPathValidator, also used by PkixAttrCertPathBuilder in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker to have a forged X.509 attribute certificate accepted as...
CVE-2026-63571 Attribute certificate path validation does not verify the attribute certificate's signature
Improper verification of cryptographic signature in the attribute certificate path validator PkixAttrCertPathValidator, also used by PkixAttrCertPathBuilder in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker to have a forged X.509 attribute certificate accepted as...
SUSE CVE-2026-47554
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where improper verification of cryptographic signatures may cause signature verification to be bypassed under memory pressure. A successful exploit of this vulnerability might lead to denial of service and data...
PyJWT HMAC Algorithm Use-After-Free
The vulnerability of the HMACAlgorithm.preparekey function in the PyJWT library is related to errors in the verification of the cryptographic signature. Exploiting this vulnerability could allow an attacker to bypass existing security mechanisms and gain unauthorized access to protected informati...
PyJWT HMAC Algorithm Bypass
The vulnerability of the HMACAlgorithm.preparekey function in the jwt/algorithms.py library of PyJWT is related to errors in cryptographic signature verification. Exploiting this vulnerability could allow an attacker to bypass existing security mechanisms remotely...
CVE-2026-104435: Improper Verification of Cryptographic Signature
Zebra zebrad 4.4.0 and zebra-script 6.0.0 fail to enforce a ZIP-244 consensus rule, accepting V5 transparent inputs signed with SIGHASHSINGLE that lack a corresponding output. Attackers can broadcast crafted V5 transactions with more inputs than outputs that Zebra accepts but zcashd rejects,...
PyJWT jwt/utils.py Function Disclosure
The vulnerability of the ispemformat function in the jwt/utils.py library of PyJWT is related to errors in the verification of the cryptographic signature. Exploiting this vulnerability could allow an attacker to bypass existing security mechanisms and disclose sensitive information...
CVE-2026-104458: Server-Side Request Forgery (SSRF)
YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl that allows unauthenticated attackers to bypass the SSRF guard using 6to4, NAT64, or IPv4-compatible IPv6 addresses. Attackers can send a crafted Signature keyId to the public actor inbox route to reach...
From TS-SUF-2 to TS-SUF-4: Practical Security Enhancements for FROST2 Threshold Signatures
Threshold signature schemes play a vital role in securing digital assets within blockchain and distributed systems. FROST2 stands out as a practical threshold Schnorr signature scheme, noted for its efficiency and compatibility with standard verification processes. However, under the one-more...
PT-2026-104202
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-2026-104437: Improper Verification of Cryptographic Signature
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-2026-103603: Memory Allocation with Excessive Size Value
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...
PyJWT HMAC Algorithm Unauthorized Access
The vulnerability of the HMACAlgorithm.fromjwk method in PyJWT is related to errors in verifying the cryptographic signature. Exploiting this vulnerability could allow an attacker, operating remotely, to gain unauthorized access to protected information...
GO-2026-6570 Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass in github.com/projectdiscovery/nuclei
Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass in github.com/projectdiscovery/nuclei...