CVE-2025-40926

The Plack::Middleware::Session::Simple Perl middleware (versions before 0.05 ) contains a vulnerability where session IDs are generated insecurely. The root cause is the use of a SHA-1 hash seeded with the built-in rand function, the epoch time, and the process ID (PID ). Because the rand functio...

CVE-2025-40931: Generation of Predictable Numbers or Identifiers

Apache::Session::Generate::MD5 versions through 1.94 for Perl create insecure session id. Apache::Session::Generate::MD5 generates session ids insecurely. The default session id generator returns a MD5 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come fro...

CVE-2024-57854: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Net::NSCA::Client versions through 0.009002 for Perl uses a poor random number generator. Version v0.003 switched to use Data::Rand::Obscure instead of Crypt::Random for generation of a random initialisation vectors. Data::Rand::Obscure uses Perl's built-in rand function, which is not suitable fo...

CVE-2025-40926: Generation of Predictable Numbers or Identifiers

Plack::Middleware::Session::Simple versions before 0.05 for Perl generates session ids insecurely. The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be...

PT-2026-23125

Name of the Vulnerable Software and Affected Versions Net::NSCA::Client versions through 0.009002 Description Net::NSCA::Client for Perl utilizes an inadequate random number generator. Version 0.003 transitioned to using Data::Rand::Obscure instead of Crypt::Random for generating initialization...

CVE-2026-3255 HTTP::Session2 versions before 1.12 for Perl may generate weak session ids using the rand() function

HTTP::Session2 versions before 1.12 for Perl for Perl may generate weak session ids using the rand function. The HTTP::Session2 session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epo...

CVE-2026-3255: Generation of Predictable Numbers or Identifiers

HTTP::Session2 versions before 1.12 for Perl for Perl may generate weak session ids using the rand function. The HTTP::Session2 session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will come from a small set of numbers, and the epo...

CVE-2025-40932: Generation of Predictable Numbers or Identifiers

Apache::SessionX versions through 2.01 for Perl create insecure session id. Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 returns a MD5 hash seeded with the built-in rand function, the epoch time, and the PID. The PID will...

CVE-2024-58041

Smolder versions through 1.51 for Perl uses insecure rand function for cryptographic functions. Smolder 1.51 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Specifically Smolder::DB::Developer uses t...

CVE-2024-58041

Smolder versions through 1.51 for Perl uses insecure rand function for cryptographic functions. Smolder 1.51 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Specifically Smolder::DB::Developer uses t...

CVE-2024-58041: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Smolder versions through 1.51 for Perl uses insecure rand function for cryptographic functions. Smolder 1.51 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Specifically Smolder::DB::Developer uses t...

CVE-2024-48928: Use of Insufficiently Random Values

Piwigo is an open source photo gallery application for the web. In versions on the 14.x branch, when installing, the secretkey configuration parameter is set to MD5RAND in MySQL. However, RAND only has 30 bits of randomness, making it feasible to brute-force the secret key. The CSRF token is...

CVE-2024-58041

Smolder for Perl versions through 1.51 are vulnerable to a security flaw caused by the use of the insecure rand() function for cryptographic operations. Specifically, the Smolder::DB::Developer component utilizes the Data::Random library, which relies on rand() as a default entropy source. Becaus...

CVE-2024-58041

Smolder versions through 1.51 for Perl uses insecure rand function for cryptographic functions. Smolder 1.51 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Specifically Smolder::DB::Developer uses t...

CVE-2024-58041 Smolder versions through 1.51 for Perl uses insecure rand() function for cryptographic functions

Smolder versions through 1.51 for Perl uses insecure rand function for cryptographic functions. Smolder 1.51 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Specifically Smolder::DB::Developer uses t...

PT-2026-21579

Name of the Vulnerable Software and Affected Versions Smolder versions through 1.51 Description Smolder for Perl versions through 1.51 utilizes an insecure rand function for cryptographic operations. Specifically, Smolder::DB::Developer employs the Data::Random library, which relies on the rand...

CVE-2025-15578

Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the system time which is available from HTTP response headers, a call to the built-in rand function, and the PID...

CVE-2025-15578 Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely

Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the system time which is available from HTTP response headers, a call to the built-in rand function, and the PID...

CVE-2026-2439: Generation of Predictable Numbers or Identifiers

Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generatesessionid function in Concierge::Sessions::Base defaults to using the uuidgen command to generate a UUID, with a fallback to using Perl's built-in rand function. Neither of these methods are...

CVE-2025-15578: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the system time which is available from HTTP response headers, a call to the built-in rand function, and the PID...