CVE-2026-9323

The urwid web display backend urwid/display/web.py generates web session identifiers urwidid in Screen.start by concatenating two random.randrange109 calls that use Python's Mersenne Twister PRNG, which is not cryptographically secure. Each call consumes approximately 30 bits of PRNG state, and t...

CVE-2026-57082 Net::BitTorrent versions through 2.0.1 for Perl generate the MSE Diffie-Hellman private key with a non-cryptographic PRNG

Net::BitTorrent versions through 2.0.1 for Perl generate the MSE Diffie-Hellman private key with a non-cryptographic PRNG. The MSE Message Stream Encryption handshake derives its 160-bit Diffie-Hellman private key from Perl's rand, a non-cryptographic drand48-class generator seeded once per...

GHSA-VFGX-5Q85-58Q3 openssl-encrypt has non-cryptographic PRNG used for steganography pixel selection

Summary The generatepseudorandomsequence function in opensslencrypt/plugins/steganography/core/utils.py at lines 89-91 uses Python's random module Mersenne Twister for steganographic pixel/sample selection. Affected Code python random.seedseed sequence = random.samplerangemaxvalue, minlength,...

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Overview Affected versions of this package are vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator PRNG due to the UUIDv4 and UUID functions silently returning predictable values, such as the zero UUID, when the cryptographic random number generator fails. An attacker can...

Sakai kernel-impl: predictable PRNG used to generate server‑side encryption key in EncryptionUtilityServiceImpl

Impact EncryptionUtilityServiceImpl initialized an AES256TextEncryptor password serverSecretKey using RandomStringUtils with the default java.util.Random. java.util.Random is a non‑cryptographic PRNG and can be predicted from limited state/seed information e.g., start time window, substantially...

CVE-2021-45484

In NetBSD through 9.2, the IPv6 fragment ID generation algorithm employs a weak cryptographic PRNG...