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CVE Vulnerability Details :
CVE-2026-8647
PUBLISHED
More InfoOfficial Page
Assigner-CPANSec
Assigner Org ID-9b29abf9-4ab0-4765-b253-1875cd9b441e
View Known Exploited Vulnerability (KEV) details
Published At-26 May, 2026 | 22:53
Updated At-28 May, 2026 | 14:09
Rejected At-
▼CVE Numbering Authority (CNA)
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.

Affected Products
Vendor
MIK
Product
Crypt::ScryptKDF
Collection URL
https://cpan.org/modules
Package Name
Crypt-ScryptKDF
Repo
https://github.com/DCIT/perl-Crypt-ScryptKDF
Program Files
  • lib/Crypt/ScryptKDF.pm
Program Routines
  • Crypt::ScryptKDF::random_bytes
Default Status
unaffected
Versions
Affected
  • From 0 through 0.010 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-338CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator
Type: CWE
CWE ID: CWE-338
Description: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to version 0.011 or later.

Configurations
Workarounds

Install one of the recommended Perl modules, such as Crypt::PRNG.

Exploits
Credits
Timeline
EventDate
Issue reported to CPANSec2026-05-13 00:00:00
Issue reported to maintainer2026-05-14 00:00:00
Version 0.011 with fix released.2026-05-16 00:00:00
Event: Issue reported to CPANSec
Date: 2026-05-13 00:00:00
Event: Issue reported to maintainer
Date: 2026-05-14 00:00:00
Event: Version 0.011 with fix released.
Date: 2026-05-16 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/changes
release-notes
https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/diff/MIK/Crypt-ScryptKDF-0.010#lib/Crypt/ScryptKDF.pm
N/A
Hyperlink: https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/changes
Resource:
release-notes
Hyperlink: https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/diff/MIK/Crypt-ScryptKDF-0.010#lib/Crypt/ScryptKDF.pm
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2026/05/26/8
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2026/05/26/8
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.14.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Version: 3.1
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found