CVE-2026-104082
Last modified
CVE-2026-104082 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. SmarterMail before build 9777 contains a remote code execution vulnerability that allows an attacker holding a SysAdmin-scoped access token to bypass the Volume Mount script-directory containment control by provisioning a new mail domain with an arbitrary FileStore root path inside the trusted Scripts directory via the domain-put endpoint. Attackers can disclose the Scripts path through the AddOrUpdateMount endpoint, clear the upload extension blacklist via the global-mail endpoint, then upload a malicious script through the ordinary mail file-storage upload API so that saving a CommandMount triggers RunScript before validation, resulting in a reverse shell executing as the SmarterMail service account with SYSTEM-level privileges..
Description
SmarterMail before build 9777 contains a remote code execution vulnerability that allows an attacker holding a SysAdmin-scoped access token to bypass the Volume Mount script-directory containment control by provisioning a new mail domain with an arbitrary FileStore root path inside the trusted Scripts directory via the domain-put endpoint. Attackers can disclose the Scripts path through the AddOrUpdateMount endpoint, clear the upload extension blacklist via the global-mail endpoint, then upload a malicious script through the ordinary mail file-storage upload API so that saving a CommandMount triggers RunScript before validation, resulting in a reverse shell executing as the SmarterMail service account with SYSTEM-level privileges.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Smartertools | Smartermail | < Build 9777 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-104082?
How severe is CVE-2026-104082?
How do I fix CVE-2026-104082?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-104075TVU Networks Receiver/Transceiver devices running firmware b…9.8
- CVE-2026-104076TVU Networks Receiver/Transceiver devices running firmware b…9.1
- CVE-2026-104077Obsidian Desktop before 1.14.0 contains a remote code execut…7.8
- CVE-2026-104078Obsidian Desktop before 1.14.0 contains a filter bypass vuln…7.8
- CVE-2026-104079Envira Gallery Lite before 1.16.2 contains a missing authori…4.3
- CVE-2026-104081KodExplorer before 4.55 contains a path traversal vulnerabil…8.1
- CVE-2026-104083SmarterMail before build 9777 contains a stored mutation cro…6.1
- CVE-2026-104084SmarterMail before build 9777 contains a privilege escalatio…8.8
- CVE-2026-104112A missing release of resources in the illumos name service c…6.8
- CVE-2026-104113A double free in the IP management daemon (ipmgmtd) of OmniO…5.4
- CVE-2026-104114A NULL pointer dereference in the illumos Network Auto-Magic…5.4
- CVE-2026-104115A stack-based buffer overflow in the illumos reparse point d…5.4
Are you affected by CVE-2026-104082?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST