The vulnerabilities of the functions pkcs7_decrypt_smime(), pkcs7_decrypt_pem(), and pkcs7_decrypt_der in the Python programming language-based cryptography library allow attackers to compromise the confidentiality of protected information.

The vulnerabilities of the functions pkcs7decryptsmime, pkcs7decryptpem, and pkcs7decryptder in the Python programming language-based cryptography library are related to deficiencies in the error reporting mechanism. Exploiting these vulnerabilities could allow an attacker to influence the...

CLSA-2026-1778028237 TuxCare security update for cryptography (1 CVE)

TuxCare rebuilt cryptography to address 1 CVE. Fixed in 45.0.7.post2+tuxcare...

CLSA-2026-1773965917 TuxCare security update for crypto-js (1 CVE)

TuxCare rebuilt crypto-js to address 1 CVE. Fixed in 3.3.0-tuxcare.1...

CLSA-2026-1773879457 TuxCare security update for cryptography (1 CVE)

TuxCare rebuilt cryptography to address 1 CVE. Fixed in 42.0.8.post2+tuxcare...

CLSA-2026-1772151042 TuxCare security update for cryptography (2 CVEs)

TuxCare rebuilt cryptography to address 2 CVEs. Fixed in 3.4.8.post1+tuxcare...

CLSA-2026-1772151045 TuxCare security update for cryptography (1 CVE)

TuxCare rebuilt cryptography to address 1 CVE. Fixed in 3.4.8.post4+tuxcare...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

CVE-2026-69249

creationtimestamp| type| source ---|---|--- 2026-08-03 22:20:16+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/g2utxha3ngw7m 2026-08-03 22:35:06+00:00| published-proof-of-concept| https://github.com/pyca/cryptography/security/advisories/GHSA-jwv3-5hgf-82ww 2026-08-03 23:31:38+00:00|...

DEBIAN-CVE-2026-69248

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, 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,...

DEBIAN-CVE-2026-69247

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7decryptder, pkcs7decryptpem, and pkcs7decryptsmime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which...

python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees

Summary 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 accepts which allows escaping outside of the permitted names. PoC !/usr/bin/env python3 """Standalone PoC: pyca's...

GHSA-M2H6-J472-RP4C python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees

Summary 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 accepts which allows escaping outside of the permitted names. PoC !/usr/bin/env python3 """Standalone PoC: pyca's...

CVE-2026-69249 python-cryptography: Duplicate self-signed intermediates can cause exponential path-building

python-cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 42.0.0 through 48.0.0, when resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same...

CVE-2026-69247 cryptography: PKCS#7 EnvelopedData decryption exposes a Bleichenbacher oracle through distinguishable errors and timing

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7decryptder, pkcs7decryptpem, and pkcs7decryptsmime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

Improper Certificate Validation

Overview org.bouncycastle:bcprov-ext-jdk14 is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Improper Certificate Validation in the check method of ProvOcspRevocationChecker, which verifies a stapled OCSP response's signature and then treats...

Improper Validation of Integrity Check Value

Overview Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value that leads to information exposure in the processPacket method of CCMBlockCipher, with equivalent paths in KCCMBlockCipher and KGCMBlockCipher, which decrypt directly into the caller's output...

Memory Allocation with Excessive Size Value

Overview org.bouncycastle:bcprov-debug-jdk15on is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in HSSPublicKeyParameters.getInstance and HSSSignature.getInstance, which read the HSS level count L...

Allocation of Resources Without Limits or Throttling

Overview org.bouncycastle:bcprov-jdk15 is a package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5. Affected versions of this package are vulnerable to Allocation of Resources Without...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...