Vulnerability · Published Apr 16, 2026 · Assigned by mitre
CVE-2026-41113
High 8.1
In plain English
A high-severity OS command injection in qmail from sagredo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.9%top 41.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
sagredo qmail before 2026.04.07 allows tls_quit remote code execution because of popen in notlshosts_auto in qmail-remote.c.
Affected products (as reported)
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://blog.calif.io/p/we-asked-claude-to-audit-sagredos
- https://github.com/califio/publications/tree/main/MADBugs/qmail
- https://github.com/sagredo-dev/qmail/commit/749f607f6885e3d01b36f2647d7a1db88f1ef741
- https://github.com/sagredo-dev/qmail/releases/tag/v2026.04.07
- https://github.com/sagredo-dev/qmail/pull/42
- http://www.openwall.com/lists/oss-security/2026/04/18/5