Vulnerability in Mutt

CVE-2026-43863

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

EPSS: 0.000 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Mutt — versions 0

Weakness classification (CWE)

CWE-253

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-43863?: CVE-2026-43863 is a low-severity vulnerability in Mutt, classified under CWE-253. CVSS score: 3.7/10. Published 2026-05-04.
How severe is CVE-2026-43863?: Low severity. CVSS v3 base score is 3.7 out of 10.