CVE-2026-49217CWE-306

CVE-2026-49217

High · published August 21, 2026

CVSS v3.1

7.5

EPSS

Percentile

28.3

In the wild

Unconfirmed

What it is

Mailu is a mail server as a set of Docker images. Prior to version 2024.06.52, a missing authorization check in the Mailu admin REST API allows any unauthenticated attacker to remove any potential IP restriction or update the comment field from any existing user token provided the REST API is enabled. Upgrade to Mailu 2024.06.52 to receive a patch or, as a workaround, turn the REST API off.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0: Not supplied
EPSS: 0.00358 · 28.3th percentile
Weakness: CWE-306 · Missing Authentication for Critical Function
Published: 2026-08-21T02:17Z

References (1)

https://github.com/Mailu/Mailu/security/advisories/GHSA-2w8v-6xr5-g9gh · [email protected]

EPSS history

Timeline

20 AUG 22:01Z
Mailu missing authentication on PATCH /api/v1/token/<id>, which allows unauthenticated removal of IP restrictions
cvelistv5