EUVD-2026-52450

python-cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, when resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an...

CVE-2026-69249

CVE-2026-69249 affects python-cryptography prior to 49.0.0, where resolving invalid certificate chains with duplicate self-signed intermediates can explode in recursion, causing resource exhaustion DoS. The core issue is in the recursive build_chain_inner not de-duplicating previously analyzed ca...

EUVD-2026-52448

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of .example.com, python-cryptography's verifier...

SUSE SLED15 / SLES15 Security Update : python-cryptography (SUSE-SU-2026:3026-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3026-1 advisory. This update for python-cryptography fixes the following issues - CVE-2026-41676: openssl: Deriver:derive and...

Security update for python-cryptography

This update for python-cryptography fixes the following issues CVE-2026-41676: openssl: Deriver:derive and PkeyCtxRef:derive can overflow short buffers on OpenSSL 1.1.1 bsc1270208. CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length in rust-...

openSUSE 16 Security Update : python-cryptography (openSUSE-SU-2026:21294-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21294-1 advisory. This update for python-cryptography fixes the following issues - CVE-2026-41676: openssl: Deriver:derive and PkeyCtxRef:derive can overflow shor...

SUSE-SU-2026:22624-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues - CVE-2026-41676: openssl: Deriver:derive and PkeyCtxRef:derive can overflow short buffers on OpenSSL 1.1.1 bsc1270208. - CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length...

PYSEC-2026-1283 Python Cryptography package vulnerable to Bleichenbacher timing oracle attack

A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data...

EulerOS 2.0 SP15 : python-cryptography (EulerOS-SA-2026-2500)

According to the versions of the python-cryptography packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the...

EulerOS 2.0 SP15 : python-cryptography (EulerOS-SA-2026-2459)

According to the versions of the python-cryptography packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the...

Astra Linux - Vulnerability in python-cryptography

cryptography is a package designed to provide Python developers with cryptographic primitives and algorithms. Prior to version 46.0.5, the publickeyfromnumbers or EllipticCurvePublicNumbers.publickey, EllipticCurvePublicNumbers.publickey, loadderpublickey, and loadpempublickey functions did not...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python-cryptography: python3-cryptography-48.0.0-3.hum1 aarch64, x8664 python-cryptography-48.0.0-3.hum1.src src...

Astra Linux – Vulnerability in python-cryptography

A flaw was discovered in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which could result in the exposure of confidential or sensitive data...

Astra Linux – Vulnerability in python-cryptography

Cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions, Cipher.updateinto would accept Python objects that implement the buffer protocol, but only provide immutable buffers. This would allow immutable objects such as bytes to b...

Astra Linux – Vulnerability in python-cryptography

In the cryptography package for Python before version 3.3.2, certain sequences of update calls to symmetrically encrypt multi-GB values could lead to integer overflows and buffer overflows, as demonstrated by the Fernet class...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-cryptography (UTSA-2026-021489)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021489 advisory. A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges,...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-cryptography (UTSA-2026-017476)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017476 advisory. In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow a...

JWCrypto: python-cryptography: python: JWCrypto: Memory exhaustion via crafted compressed JWE tokens

A flaw was found in JWCrypto, a Python library for JSON Web Key JWK, JSON Web Signature JWS, and JSON Web Encryption JWE specifications. An unauthenticated attacker can exploit this vulnerability by sending specially crafted JWE tokens that use ZIP compression. While the input token size is...

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...

USN-8087-3 python-cryptography vulnerability

USN-8087-1 fixed a vulnerability in python-cryptography. This update provides the corresponding update to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that python-cryptography incorrectly handled subgroup validation for SECT curves. A remo...