Makunet maku-boot Missing Authorization in Mail and SMS Config Endpoints
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Makunet maku-boot from 4.3.0 through 5.0.0 has a missing authorization flaw (CWE-862) in its mail and SMS configuration endpoints. An authenticated user without the required authority can read mail and SMS configurations through /sys/mail/config/list and /sys/sms/config/list, exposing unmasked SMTP passwords and cloud access keys. The same user can also use /sys/mail/config/send to send mail to arbitrary recipients.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version is listed for maku-boot.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Timeline
- 2026-10-13 Threatist record created from CVE-2026-110123
- 2026-10-13 Alias added: GHSA-h693-8653-564c
- 2026-10-14 Priority changed: MEDIUM → LOW
- 2026-10-18 CISA SSVC decision points changed
References
Other 4
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysMailConfigController.java#L53-L59
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysMailConfigController.java#L79-L84
- https://github.com/makunet/maku-boot/blob/4cd202b037e2ac47e366d4b0691fb387c764d308/maku-boot-system/src/main/java/net/maku/system/controller/SysSmsConfigController.java#L53-L59
- maku-boot v5.0.0 Release Notes
Sources
- CVE-2026-110123 · CVE Program
- CVE-2026-110123 · NVD
- FIRST EPSS
- GHSA-h693-8653-564c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences