---
id: "CVE-2021-44026"
kind: "vulnerability"
aliases: ["CVE-2021-44026"]
title: "Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "package"
products: [{"name": "Roundcube Roundcube Webmail", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "roundcube webmail", "fixed": ["1.3.17"], "affected": "< 1.3.17", "ecosystem": "vendor"}, {"name": "roundcube webmail", "fixed": ["1.4.12"], "affected": ">= 1.4.0, < 1.4.12", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 33", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 34", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 9.0", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 10.0", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 11.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "package", "roundcube", "self-hosted", "webmail"]
not_affected_if: ["unknown"]
published_at: "2021-11-19T04:15:07+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-44026", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44026", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params

Roundcube Webmail has a SQL injection flaw in its search handling, reached through the search or search_params input. An attacker can run arbitrary SQL against the mail database, which can expose stored mail, contacts, and account credentials.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Roundcube Roundcube Webmail affected ? fixed ?
- vendor:roundcube webmail affected < 1.3.17 fixed 1.3.17
- vendor:roundcube webmail affected >= 1.4.0, < 1.4.12 fixed 1.4.12
- vendor:fedoraproject fedora affected = 33 fixed ?
- vendor:fedoraproject fedora affected = 34 fixed ?
- vendor:debian linux affected = 9.0 fixed ?
- vendor:debian linux affected = 10.0 fixed ?
- vendor:debian linux affected = 11.0 fixed ?

## Fix

Upgrade Roundcube Webmail to a fixed release per the vendor instructions; the sources do not name the fixed version.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-44026
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2021-44026

## From the sources

Roundcube Webmail is vulnerable to SQL injection via search or search_params.

CISA required action: Apply updates per vendor instructions.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_