OESA-2026-1963 openssh security update

An open source implementation of SSH protocol version 2 Security Fixes: Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. Th...

Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext

A flaw was found in Libgcrypt. A remote attacker could exploit this vulnerability by sending crafted Elliptic Curve Diffie-Hellman ECDH ciphertext to the gcrypkdecrypt function. This can lead to a heap-based buffer overflow, potentially causing a denial of service DoS condition...

Security Bulletin: IBM Cloud Pak for Data System (CPDS 2.0) - Insufficient Verification in cryptography package

Summary IBM Cloud Pak for Data System CPDS 2.0 uses the Python cryptography package version 3.3.2, which contains a critical vulnerability CVE-2026-26007 affecting elliptic curve cryptography operations. The package fails to verify that public key points belong to the expected prime-order subgrou...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to an Insufficient Verification of Data Authenticity in cryptography [CVE-2026-26007]

Summary IBM Watson Speech Services Cartridge is vulnerable to an Insufficient Verification of Data Authenticity in cryptography, due to a condition where the publickeyfromnumbers or EllipticCurvePublicNumbers.publickey, EllipticCurvePublicNumbers.publickey, loadderpublickey and loadpempublickey...

OESA-2026-1837 python-ecdsa security update

This is an easy-to-use implementation of ECDSA cryptography Elliptic Curve Digital Signature Algorithm, implemented purely in Python, released under the MIT license. With this library, you can quickly create keypairs signing key and verifying key, sign messages, and verify the signatures. The key...

OESA-2026-1836 python-ecdsa security update

This is an easy-to-use implementation of ECDSA cryptography Elliptic Curve Digital Signature Algorithm, implemented purely in Python, released under the MIT license. With this library, you can quickly create keypairs signing key and verifying key, sign messages, and verify the signatures. The key...

SUSE-SU-2026:21021-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues: - CVE-2026-34073: Fixed X.509 bypass of name constraints on wildcard SANs with matching peer names. bsc1260876 - CVE-2026-26007: missing validation can lead to security issues for signature verification ECDSA and shared key negotiati...

libsodium: pynacl: libsodium: Improper validation of elliptic curve points could lead to data integrity or information disclosure.

A flaw was found in libsodium and pynacl. When processing untrusted data in specific cryptographic operations, the library's cryptocoreed25519isvalidpoint function incorrectly validates elliptic curve points. This improper validation could allow an attacker to bypass security checks, potentially...

EUVD-2026-21291

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

UBUNTU-CVE-2026-5466

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

CVE-2026-5466

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

CVE-2026-5466

CVE-2026-5466 affects wolfSSL’s ECCSI verifier wc_VerifyEccsiHash, which decodes r and s without validating they lie in [1, q-1]. This could allow forging a signature to verify against any message for any identity using publicly-known constants. Connected docs confirm the root cause: missing sani...

CVE-2026-5466 wc_VerifyEccsiHash missing sanity check

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

CVE-2026-5466

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

PT-2026-31862

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description The ECCSI signature verifier wc VerifyEccsiHash in wolfSSL decodes the r and s scalars from the signature blob using mp read unsigned bin without verifying that these values fall within the...

CVE-2026-5466

wolfSSL's ECCSI signature verifier wcVerifyEccsiHash decodes the r and s scalars from the signature blob via mpreadunsignedbin with no check that they lie in 1, q-1. A crafted forged signature could verify against any message for any identity, using only publicly-known constants...

CVE-2026-5194

A flaw was found in wolfSSL. Missing hash/digest size and Object Identifier OID checks allow the acceptance of smaller, less secure digests during the verification of Elliptic Curve Digital Signature Algorithm ECDSA certificates. This could enable a remote attacker, with knowledge of the public...

CVE-2026-5194

Missing hash/digest size and OID checks allow digests smaller than allowed when verifying ECDSA certificates, or smaller than is appropriate for the relevant key type, to be accepted by signature verification functions. This could lead to reduced security of ECDSA certificate-based authentication...

DEBIAN-CVE-2026-5194

Missing hash/digest size and OID checks allow digests smaller than allowed when verifying ECDSA certificates, or smaller than is appropriate for the relevant key type, to be accepted by signature verification functions. This could lead to reduced security of ECDSA certificate-based authentication...

CVE-2026-5194

Missing hash/digest size and OID checks allow digests smaller than allowed when verifying ECDSA certificates, or smaller than is appropriate for the relevant key type, to be accepted by signature verification functions. This could lead to reduced security of ECDSA certificate-based authentication...