mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.

Project Subscriptions

Vendors Products
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 07 May 2026 12:15:00 +0000

Type Values Removed Values Added
Title IMAP auth_cram MD5 Hash Truncation in Mutt Causes Incorrect Password Digest mutt: mutt: Authentication bypass due to IMAP CRAM-MD5 hash truncation
References
Metrics threat_severity

None

threat_severity

Low


Mon, 04 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 04 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title IMAP auth_cram MD5 Hash Truncation in Mutt Causes Incorrect Password Digest

Mon, 04 May 2026 06:45:00 +0000

Type Values Removed Values Added
Description mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.
First Time appeared Mutt
Mutt mutt
Weaknesses CWE-193
CPEs cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
Vendors & Products Mutt
Mutt mutt
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-04T18:20:29.272Z

Reserved: 2026-05-04T05:45:04.956Z

Link: CVE-2026-43860

cve-icon Vulnrichment

Updated: 2026-05-04T12:50:22.886Z

cve-icon NVD

Status : Deferred

Published: 2026-05-04T07:16:00.573

Modified: 2026-05-05T19:44:42.893

Link: CVE-2026-43860

cve-icon Redhat

Severity : Low

Publid Date: 2026-05-04T05:45:05Z

Links: CVE-2026-43860 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T07:30:40Z

Weaknesses