What’s Vulnerable › Vulnerabilities

CVE-2024-35179: Unprivileged Stalwart Mail Server user can read files as root

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-15 · updated 2026-06-17
• Weakness: CWE-271

Description

Stalwart Mail Server is an open-source mail server. Prior to version 0.8.0, when using `RUN_AS_USER`, the specified user (and therefore, web interface admins) can read arbitrary files as root. This issue affects admins who have set up to run stalwart with `RUN_AS_USER` who handed out admin credentials to the mail server but expect these to only grant access according to the `RUN_AS_USER` and are attacked where the attackers managed to achieve Arbitrary Code Execution using another vulnerability. Version 0.8.0 contains a patch for the issue.

Affected products

• stalwartlabs mail-server: before 0.8.0 — fixed in 0.8.0

How to fix

Upgrade to a fixed version: stalwartlabs mail-server 0.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/stalwartlabs/mail-server/security/advisories/GHSA-5pfx-j27j-4c6h
• https://github.com/stalwartlabs/mail-server/security/advisories/GHSA-5pfx-j27j-4c6h

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