CVE-2026-6656 - Vulnerability Details - OpenCVE

Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks.

The check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00145.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

DRSTEVE

Crypt::Password

unaffected

Version	Status	Constraints
`0`	affected	≤ 0.28

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

This module has not been updated since 2012. Users should migrate to an alternative solution.

References

Link	Providers
https://metacpan.org/release/DRSTEVE/Crypt-Password-0.28/source/lib/Crypt/Password.pm#L190-193
https://rt.cpan.org/Ticket/Display.html?id=180162

History

Mon, 20 Jul 2026 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 20 Jul 2026 07:15:00 +0000

Type	Values Removed	Values Added
Description		Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks. The check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash.
Title		Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks
Weaknesses		CWE-208
References		https://metacpan.org/release/DRSTEVE/Crypt-Password-0.28/source/lib/Crypt/Password.pm#L190-193 https://rt.cpan.org/Ticket/Display.html?id=180162

Projects

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MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-07-20T07:01:45.818Z

Updated: 2026-07-20T18:38:21.362Z

Reserved: 2026-04-20T08:08:16.230Z

Link: CVE-2026-6656

Vulnrichment

Updated: 2026-07-20T18:38:21.362Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-208

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