CVE-2026-40871
- Source
- https://cve.org/CVERecord?id=CVE-2026-40871
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40871.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-40871
- Aliases
-
- GHSA-r8fq-wrfm-cj2q
- Published
- 2026-04-21T19:12:52Z
- Modified
- 2026-10-28T02:30:42Z
- Severity
-
- 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- mailcow: dockerized vulnerable to Second Order SQL Injection in quarantine category via API
- Details
-
mailcow: dockerized is an open source groupware/email suite based on docker. Versions prior to 2026-03b have a second-order SQL injection vulnerability in the quarantine_category field via the Mailcow API. The /api/v1/add/mailbox endpoint stores quarantine_category without validation or sanitization. This value is later used by quarantine_notify.py, which constructs SQL queries using unsafe % string formatting instead of parameterized queries. This results in a delayed (second-order) SQL injection when the quarantine notification job executes, allowing an attacker to inject arbitrary SQL. Using a UNION SELECT, sensitive data (e.g., admin credentials) can be exfiltrated and rendered inside quarantine notification emails. Version 2026-03b fixes the vulnerability.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-116", "CWE-20", "CWE-564", "CWE-89" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40871.json" }- References
Affected packages
Git / github.com/mailcow/mailcow-dockerized
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mailcow/mailcow-dockerized
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "2026-03b" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "0" }, { "fixed": "2026-03b" } ], "source": "DESCRIPTION" } ] }