Vendor
Mailu vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in Mailu: 0 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-86009, was published on 16 October 2026. 2 vulnerabilities in the last four weeks, up 100% on the four before (1). 0 critical against 1. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 4
- Critical, all time
- 1
- Exploited in the wild
- 0
About Mailu
Open-source email server and webmail application for self-hosted mail services.
Mailu technologies
Latest Mailu vulnerabilities
- CVE-2026-86009: Mailu domain manager email spoofing authorization bypassinfo
- CVE-2026-86008: Mailu authorization bypass in admin account managementhighCVSS 7.2
- CVE-2026-85751: Mailu mail server authentication bypass via header spoofingcriticalCVSS 9.8EPSS 0.6%
- CVE-2026-49217: Mailu admin REST API missing authentication in token endpointhighCVSS 7.5EPSS 0.4%
Most severe Mailu vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-85751: Mailu mail server authentication bypass via header spoofingcriticalCVSS 9.8EPSS 0.6%
- CVE-2026-49217: Mailu admin REST API missing authentication in token endpointhighCVSS 7.5EPSS 0.4%
- CVE-2026-86008: Mailu authorization bypass in admin account managementhighCVSS 7.2
- CVE-2026-86009: Mailu domain manager email spoofing authorization bypassinfo
Vulnerabilities per week
2 vulnerabilities in the last four weeks, up 100% on the four before (1). 0 critical against 1. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 1 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 1 | 1 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 2 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Mailu vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/mailu)<a href="https://junglewise.ai/threats/vendors/mailu"><img src="https://junglewise.ai/threats/vendors/mailu/badge.svg" alt="Mailu vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/mailu.json, and this page as text at https://junglewise.ai/threats/vendors/mailu.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Mailu vulnerabilities", https://junglewise.ai/threats/vendors/mailu, 9 November 2026.