Name: CVE-2026-43861: Improper Neutralization of Null Byte or NUL Character
Creator: Rapid7
Published: 2026-05-04T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-43861, CWE-158, CVSS 3.7, EPSS 0.00256

mutt before 2.3.2 does not check for '\0' in url_pct_decode.

CVSS Details

CVSS 3.1 Base Score: 3.7
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade mutt	Jul 23, 2026	Jul 23, 2026
Redhat_linux	—	No solution exists	Jul 17, 2026	May 4, 2026

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CVSS Details

Covered by Rapid7

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