CVE-2026-8647
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available
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.
- Record
CVE-2026-8647- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
EUVDEUVD-2026-32022
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.
- Record
EUVD-2026-32022- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-8647- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-8647 is a medium vulnerability (CVSS 4.8) in Mik Crypt::scryptkdf, published May 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.