CVE-2026-6659
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
CVE-2026-6659- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
EUVDEUVD-2026-28809
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
EUVD-2026-28809- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j539-xxc6-73wf
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The...
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
GHSA-j539-xxc6-73wf- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
NVD
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
CVE-2026-6659- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
OSV
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
CVE-2026-6659- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-338
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-6659
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.
- Record
DEBIAN-CVE-2026-6659- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2026-6659
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.
- Record
UBUNTU-CVE-2026-6659- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVAZL-86411 No score
CVE-2026-6659 affecting package perl-Crypt-PasswdMD5 1.4.0-19
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
- Record
AZL-86411- Updated
- 2026-11-05
OSVopenSUSE-SU-2026:11000-1 No score
perl-Crypt-PasswdMD5-1.430.0-1.1 on GA media
These are all security issues fixed in the perl-Crypt-PasswdMD5-1.430.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11000-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:21137-1 No score
Security update for perl-Crypt-PasswdMD5
This update for perl-Crypt-PasswdMD5 fixes the following issues:
Changes in perl-Crypt-PasswdMD5:
-
updated to 1.430.0 (1.43) see /usr/share/doc/packages/perl-Crypt-PasswdMD5/Changelog.ini
[V 1.43] Date=2026-05-23T08:14:00 Deploy.Action=Upgrade Deploy.Reason=Security Comments= <<EOT
- Accept pull request from Paul Howarth to replace use of the cryptographically weak rand() function with the much stronger Crypt::URandom::urandom(). With thanx. CVE-2026-6659 bsc#1264705
- Add Encode, Exporter, ExtUtils::MakeMaker to Makefile.PL.
- Add files AI_POLICY.md & SECURITY.md.
- Delete file LICENSE.
- Add file LICENSE-GPL-3 with the latest version from https://fsf.org/. EOT
- Record
openSUSE-SU-2026:21137-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
perl-Crypt-PasswdMD5Azure Linux:3 |
through 1.4.0-19 | None known |
libcrypt-passwdmd5-perlDebian:12 |
All versions, plus listed versions 1.42-21.44-1 |
None known |
libcrypt-passwdmd5-perlDebian:13 |
All versions, plus listed versions 1.42-21.44-1 |
None known |
libcrypt-passwdmd5-perlDebian:14 |
before 1.44-1, plus listed versions 1.42-2 |
1.44-1 |
libcrypt-passwdmd5-perlUbuntu:14.04:LTS |
All versions, plus listed versions 1.3-10 |
None known |
libcrypt-passwdmd5-perlUbuntu:16.04:LTS |
All versions, plus listed versions 1.3-10 |
None known |
libcrypt-passwdmd5-perlUbuntu:18.04:LTS |
All versions, plus listed versions 1.3-10 |
None known |
libcrypt-passwdmd5-perlUbuntu:20.04:LTS |
All versions, plus listed versions 1.40-1 |
None known |
libcrypt-passwdmd5-perlUbuntu:22.04:LTS |
All versions, plus listed versions 1.41-1 |
None known |
libcrypt-passwdmd5-perlUbuntu:24.04:LTS |
All versions, plus listed versions 1.42-2 |
None known |
Show 5 moreShow less
| Package | Affected | Fixed |
|---|---|---|
libcrypt-passwdmd5-perlUbuntu:25.10 |
All versions, plus listed versions 1.42-2 |
None known |
libcrypt-passwdmd5-perlUbuntu:26.10 |
All versions, plus listed versions 1.42-21.44-1 |
None known |
libcrypt-passwdmd5-perlUbuntu:26.04:LTS |
All versions, plus listed versions 1.42-2 |
None known |
perl-Crypt-PasswdMD5openSUSE:Tumbleweed |
before 1.430.0-1.1 | 1.430.0-1.1 |
perl-Crypt-PasswdMD5openSUSE:Leap 16.0 |
before 1.430.0-bp160.1.1 | 1.430.0-bp160.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-6659 is a high vulnerability (CVSS 7.5) in Rsavage Crypt::passwdmd5, published May 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in libcrypt-passwdmd5-perl 1.44-1.
References
metacpan.org/release/RSAVAGE/Crypt-PasswdMD5-1.43/changes
github.com/ronsavage/Crypt-PasswdMD5/pull/3
openwall.com/lists/oss-security/2026/05/08/17
nvd.nist.gov/vuln/detail/CVE-2026-6659
Show 10 moreShow less
cpan.org/modules
security-tracker.debian.org/tracker/CVE-2026-6659
ubuntu.com/security/CVE-2026-6659
cve.org/CVERecord?id=CVE-2026-6659
lists.security.metacpan.org/cve-announce/msg/39857355
suse.com/security/cve/CVE-2026-6659
bugzilla.suse.com/1264705