Vulnerability · Published Oct 8, 2026 · Assigned by GitLab
CVE-2026-107570Use of Out-of-range Pointer Offset in mutt
Low 2.5
In plain English
A low-severity security flaw in mutt from mutt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.2%top 95.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | mutt | 2.2.16-r1 | ALPINE-CVE-2026-107570 |
| Alpine:v3.24 | mutt | 2.3.2-r1 | ALPINE-CVE-2026-107570 |
| Debian:12 | mutt | no fix listed | DEBIAN-CVE-2026-107570 |
| Debian:13 | mutt | 2.2.13-1+deb13u2 | DEBIAN-CVE-2026-107570 |
| Debian:14 | mutt | 2.4.1-1.1 | DEBIAN-CVE-2026-107570 |
| Ubuntu:22.04:LTS | mutt | no fix listed | UBUNTU-CVE-2026-107570 |
| Ubuntu:24.04:LTS | mutt | no fix listed | UBUNTU-CVE-2026-107570 |
| Ubuntu:26.04:LTS | mutt | no fix listed | UBUNTU-CVE-2026-107570 |
| Ubuntu:26.10 | mutt | no fix listed | UBUNTU-CVE-2026-107570 |
Affected products (as reported)
Weakness: CWE-823 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N