What’s Vulnerable › Vulnerabilities

CVE-2026-41113

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-16 · updated 2026-10-26
• Weakness: CWE-78

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

• sagredo qmail: from 2024.10.26 before 2026.04.07 — fixed in 2026.04.07

How to fix

Upgrade to a fixed version: sagredo qmail 2026.04.07. Check the vendor advisory for mitigations.

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/pull/42
• https://github.com/sagredo-dev/qmail/releases/tag/v2026.04.07
• http://www.openwall.com/lists/oss-security/2026/04/18/5

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