CVE-2026-40871

Katalog CVE

CVSS 7.2 · High EPSS 0,45%

Kerentanan Improper Input Validation. Skor CVSS 3.1 7.2 (High) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

21 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

7.2 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-116: Improper Encoding or Escaping of Output
CWE-564: SQL Injection: Hibernate

EPSS (30 hari)

0,45% peluang dieksploitasi; lebih tinggi dari 37,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-r8fq-wrfm-cj2q