Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck
CVE-2026-110123Makunet maku-boot 4.3.0 through 5.0.0 Missing Authorization via Mail and SMS Config Endpoints
High 7.1
In plain English
A high-severity missing authorization in maku-boot from makunet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Official description
Makunet maku-boot 4.3.0 through 5.0.0 contains a missing authorization vulnerability that allows authenticated users to read mail and SMS configurations by calling /sys/mail/config/list and /sys/sms/config/list without the required authority checks. Attackers can retrieve unmasked SMTP passwords and Aliyun, Tencent Cloud, Qiniu or Huawei Cloud access keys, and abuse /sys/mail/config/send to send mail to arbitrary recipients.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
References
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/maku-boot-mail-sms-config-bfla third-party-advisory
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysMailConfigController.java#L53-L59 technical-description
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysMailConfigController.java#L79-L84 technical-description
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysSmsConfigController.java#L53-L59 technical-description
- maku-boot v5.0.0 Release Notes release-notes
- VulnCheck Advisory: Makunet maku-boot 4.3.0 through 5.0.0 Missing Authorization via Mail and SMS Config Endpoints third-party-advisory