CVE-2026-8647
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available
In short
Crypt::ScryptKDF uses an insecure random number generator as a fallback when proper cryptographic libraries aren't installed. This can make passwords and security keys predictable, weakening protection.
Technical detail
The library falls back to Perl's built-in rand() function instead of a cryptographically secure PRNG when no dedicated CSPRNG module is available. This occurs when Crypt::PRNG, Crypt::OpenSSL::Random, Net::SSLeay, Crypt::Random, and Bytes::Random::Secure are absent. The predictable randomness undermines key derivation security in Scrypt.
Summary generated and translated by AI from the official description.
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available.
The random_bytes function fell back to using the built-in rand() function when none of the Perl modules Crypt::PRNG, Crypt::OpenSSL::Random, Net::SSLeay, Crypt::Random, or Bytes::Random::Secure were available.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
MIK · Crypt::ScryptKDFWant to know if your infrastructure is exposed to this?
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