CVE-2026-107570

heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.

CVSS 3.1

2.5CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)

CWE

CWE-823

Published

2026-10-08

Modified

2026-10-10

Record from

the NVD, synced 2026-10-19

References

• https://gitlab.com/muttmua/mutt/-/work_items/533
• http://www.openwall.com/lists/oss-security/2026/10/09/21

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