Vulnary
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Critical· 9.8

CVE-2026-16235

Crypt::Password versions up to 0.28 for Perl generate salts using the built‑in rand function, which is predictable and unsuitable for cryptographic use. This flaw can lead to weak password protection and compromise security. The vulnerability is rated critical with a CVSS score of 9.8.

publishedJul 20, 2026
last modifiedJul 20, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
28th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 3, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Perl's Crypt::Password module, versions 0.28 and earlier.

02

Real-world impact

An attacker could predict the salts used in password hashing, making it easier to crack passwords and gain unauthorized access to systems that rely on this module.

03

Why this severity

The CVSS score is high because the flaw is network‑exploitable (AV:N), requires low attack complexity (AC:L), no privileges (PR:N), no user interaction (UI:N), and can compromise confidentiality, integrity, and availability (C:H/I:H/A:H).

04

What to do about it

no official fix yet
interim mitigations
  • Avoid using Crypt::Password for generating salts; use a library that employs a cryptographically secure random number generator.

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources.

05

Timeline

06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →