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Mutt CVE-2026-43863

| EUVD-2026-26902 LOW
Incorrect Check of Function Return Value (CWE-253)
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:N/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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-2026-26902
Analysis Generated
May 04, 2026 - 07:00 vuln.today
CVE Published
May 04, 2026 - 06:05 nvd
LOW 3.7

DescriptionNVD

mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c.

AnalysisAI

Mutt before version 2.3.2 contains an infinite loop in the data_object_to_stream function within crypt-gpgme.c that can be triggered during GPG encryption operations, leading to denial of service. The vulnerability affects remote attackers under high-complexity conditions (requiring specific GPG-encrypted message handling), and is publicly documented via a GitHub commit but has no active exploitation confirmed. …

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CVE-2026-43863 vulnerability details – vuln.today

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