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mutt EUVD-2026-26900

| CVE-2026-43862 LOW
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-05-04 mitre
3.7
CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

7
Patch available
May 04, 2026 - 07:31 EUVD
Source Code Evidence Fetched
May 04, 2026 - 07:31 vuln.today
Analysis Generated
May 04, 2026 - 07:31 vuln.today
Patch released
May 04, 2026 - 07:16 nvd
Patch available
EUVD ID Assigned
May 04, 2026 - 07:00 euvd
EUVD-2026-26900
Analysis Generated
May 04, 2026 - 07:00 vuln.today
CVE Published
May 04, 2026 - 06:00 nvd
LOW 3.7

DescriptionNVD

In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

AnalysisAI

Mutt before 2.3.2 mishandles the IMAP GSS security level due to improper integer casting and insufficient bounds checking, allowing remote attackers to trigger memory corruption and information disclosure via a crafted IMAP server response during GSS-API authentication. The vulnerability requires high attack complexity (malicious IMAP server) but affects all versions prior to 2.3.2.

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EUVD-2026-26900 vulnerability details – vuln.today

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