UBUNTU-CVE-2026-6656

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Source

https://ubuntu.com/security/CVE-2026-6656

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6656.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-6656

Upstream

CVE-2026-6656

Published

2026-07-20T07:16:00Z

Modified

2026-07-29T10:19:01Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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.

References

Affected packages

Ubuntu:26.04:LTS / libcrypt-password-perl

Package

Name: libcrypt-password-perl
Purl: pkg:deb/ubuntu/libcrypt-password-perl?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.28-1

0.28-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libcrypt-password-perl",
            "binary_version": "0.28-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6656.json"