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-2026-13082

GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a by default six-character string. The built-in rand function is...

Security Evaluation of Laser-Phase-Noise Quantum Random Number Generators with Intrinsic Correlations

Quantum random number generators are essential for achieving information-theoretical security in modern cryptographic systems. Among various implementations, laser phase noise schemes are widely favored for their simple architecture and high integration potential. However, the intrinsic...

CVE-2026-61500

Rejetto HFS 3.0.0 through 3.2.0 derives its session-cookie signing key from the non-cryptographic Math.random generator and discloses outputs of the same generator to unauthenticated clients during login. A remote attacker can collect a small number of login responses, reconstruct the generator's...

EUVD-2026-43505

Rejetto HFS 3.0.0 through 3.2.0 derives its session-cookie signing key from the non-cryptographic Math.random generator and discloses outputs of the same generator to unauthenticated clients during login. A remote attacker can collect a small number of login responses, reconstruct the generator's...

PT-2026-59273

An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID...

CVE-2026-13199

EEPROM firmware on Raspberry Pi 5 and Compute Module 5 devices produced non-random KASLR and RNG seed values. This resulted in consistent kernel addresses across boots and devices, potentially making it easier to exploit other vulnerabilities. Additionally, the low-quality RNG seed may affect the...

CVE-2026-13199 Insufficient Entropy in Raspberry Pi 5 and Compute Module 5

EEPROM firmware on Raspberry Pi 5 and Compute Module 5 devices produced non-random KASLR and RNG seed values. This resulted in consistent kernel addresses across boots and devices, potentially making it easier to exploit other vulnerabilities. Additionally, the low-quality RNG seed may affect the...

CVE-2026-56016 CGI::Session::ID::md5 versions before 4.49 for Perl generate predictable session ids from low-entropy sources

CGI::Session::ID::md5 versions before 4.49 for Perl generate predictable session ids from low-entropy sources. The generateid method builds the session id from a MD5 digest of the process id, the epoch time, and the built-in rand function. All three are predictable, low-entropy sources: the PID i...

CVE-2026-7830

UltraVNC through 1.8.2.2 uses inadequate cryptography in the MS-Logon II authentication scheme rfbUltraVNCMsLogonIIAuth. In rfb/dh.cpp the Diffie-Hellman key exchange is performed with parameters that fit in an unsigned 64-bit integer DHMAXBITS controls the prime size. A 64-bit DH key can be brok...

PT-2026-54520

CGI::Session::ID::md5 versions before 4.49 for Perl generate predictable session ids from low-entropy sources. The generate id method builds the session id from a MD5 digest of the process id, the epoch time, and the built-in rand function. All three are predictable, low-entropy sources: the PID ...

The vulnerability of the JetBrains Hub account management software lies in errors in the code of the pseudo-random number generator used for generating host keys. This allows a hacker to gain full control over the application.

The vulnerability of the JetBrains Hub account management software is related to errors in the code of the pseudorandom number generator used for generating host keys. Exploiting this vulnerability could allow a malicious actor, operating remotely, to gain full control over the application...

CVE-2026-11625

Bytes::Random::Secure versions through 0.29 for Perl share internal state across forked processes. When an object is initialised before forking, or when the functional interface is used, then the internal state for the PRNG is shared across processes and identical random streams will be produced...

CVE-2026-11625

Bytes::Random::Secure versions through 0.29 for Perl share internal state across forked processes. When an object is initialised before forking, or when the functional interface is used, then the internal state for the PRNG is shared across processes and identical random streams will be produced...

EUVD-2026-39640

Bytes::Random::Secure versions through 0.29 for Perl share internal state across forked processes. When an object is initialised before forking, or when the functional interface is used, then the internal state for the PRNG is shared across processes and identical random streams will be produced...

CVE-2026-53162

A flaw was found in the Linux kernel's memory cgroup memcg subsystem. When a non-maskable interrupt NMI occurs during an update of the system's random number generation state, it can lead to corruption of that state. This issue can result in memory cgroup charge draining, potentially causing syst...

PT-2026-52258

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the memory control group memcg where the get random u32 below function is called during memcg charge draining, which can occur in the Non-Maskable Interrupt NMI contex...

PT-2026-51729

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The jent kcapi random function serializes the shared jitterentropy state by holding a spinlock during the jent read entropy call. Because this process involves expensive jitter collectio...

JLSEC-2026-622 Predictable WebSocket masking key and handshake nonce in HTTP.jl client

Description The WebSocket client masking key wssendframe! and the Sec-WebSocket-Key handshake nonce wsrandomhandshakekey were generated with randUInt8, n, which draws from the task-local Xoshiro256++ PRNG. Xoshiro is not cryptographically secure: its internal state can be recovered from a short r...

CVE-2026-45673 Netty: DNS Cache Poisoning due to Predictable PRNG and Default Static Source Port

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DNS resolver uses a predictable PRNG for generating DNS transaction IDs and defaults to a static UDP source port. This combination reduces the entrop...