# CVE-2026-6659: libcrypt-passwdmd5-perl: Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts

CVE-2026-6659 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-6659, released May 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-6659
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0045
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 8, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libcrypt-passwdmd5-perl Debian 14 | 1.44-1 | [DEBIAN-CVE-2026-6659](https://patchblox.com/security/data/fix/linux/debian-cve-2026-6659.md) | May 8, 2026 |
| Linux | perl-Crypt-PasswdMD5 Fedora 43 | 1.4.3-1.fc43 | [FEDORA-2026-96C8AE7DBE](https://patchblox.com/security/data/fix/linux/fedora-2026-96c8ae7dbe.md) | May 23, 2026 |
| Linux | perl-Crypt-PasswdMD5 amzn 2023 | 1.4.1-1.amzn2023.0.3 | [ALAS2023-2026-1796](https://patchblox.com/security/data/fix/linux/alas2023-2026-1796.md) | Jun 8, 2026 |
| Linux | perl-Crypt-PasswdMD5 opensuse-leap 16.0 | 1.430.0-bp160.1.1 | [OPENSUSE-SU-2026:21137-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21137-1.md) | Jun 18, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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