cryptography: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

A validation flaw has been discovered in the python cryptography package. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification ECDSA and...

AZL-77454 CVE-2026-26007 affecting package python-cryptography for versions less than 42.0.5-4

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the publickeyfromnumbers or EllipticCurvePublicNumbers.publickey, EllipticCurvePublicNumbers.publickey, loadderpublickey and loadpempublickey functions do not verify that the...

CVE-2026-26007 cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the publickeyfromnumbers or EllipticCurvePublicNumbers.publickey, EllipticCurvePublicNumbers.publickey, loadderpublickey and loadpempublickey functions do not verify that the...

CVE-2026-26007

CVE-2026-26007 describes a vulnerability in the cryptography package where public_key_from_numbers, EllipticCurvePublicNumbers.public_key(), load_der_public_key(), and load_pem_public_key() do not validate that a key point belongs to the expected prime-order subgroup. This allows small-subgroup k...

Linux Distros Unpatched Vulnerability : CVE-2026-26007

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the publickeyfromnumbers or...

secp256k1-js 数据伪造问题漏洞

secp256k1-js is a pure JS implementation of secp256k1 for signing, verifying, and recovering ECDSA by the individual developer Lio Liou lionello. A security vulnerability exists in versions of secp256k1-js prior to 1.1.0, which stems from the lack of r and s validation in the implementation of...

DEBIAN-CVE-2022-24884

ecdsautils is a tiny collection of programs used for ECDSA keygen, sign, verify. ecdsaverifypreparelegacy does not check whether the signature values r and s are non-zero. A signature consisting only of zeroes is always considered valid, making it trivial to forge signatures. Requiring multiple...