CVE-2026-43861
mutt: Mutt: URL processing vulnerability due to improper null character handling
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. The url_pct_decode function, which is responsible for decoding URL-encoded strings, does not correctly handle null termination characters. This vulnerability could allow a remote attacker, to manipulate how URLs are processed, potentially leading to a limited loss of data integrity.
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-170 · Improper Null Termination