CVE-2026-43859
mutt: Mutt: Low integrity impact in IMAP authentication due to cryptographic digest mishandling
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 4, 2026
Updated · July 2, 2026
Description
A flaw was found in mutt, an email client, where it mishandles cryptographic digests used for IMAP (Internet Message Access Protocol) authentication. This incorrect handling could lead to a low integrity impact, potentially allowing a remote attacker to subtly affect the authentication process.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-303 · Incorrect Implementation of Authentication Algorithm