# CVE-2021-44026: Roundcube Webmail SQL Injection

> Attackers can execute arbitrary SQL commands via search parameters in Roundcube webmail, potentially accessing or modifying database contents.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 22 Jun 2023 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 Nov 2021
- **Updated:** 21 Oct 2025
- **Also known as:** BIT-roundcube-2021-44026, DEBIAN-CVE-2021-44026, GHSA-5fmq-jmc8-85rw, UBUNTU-CVE-2021-44026

## What is CVE-2021-44026?

CVE-2021-44026 is a critical SQL injection vulnerability in Debian Debian Linux, published on 19 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2021-44026?

1 open source package ship an affected version, including roundcube. It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `roundcube` | Bitnami | All versions | 1.3.17, 1.4.12 |

Products: Debian Debian Linux, Fedoraproject Fedora, Roundcube Webmail.

## How do I fix CVE-2021-44026?

Upgrade roundcube to a fixed version for your release line: 1.3.17 or 1.4.12. US federal agencies must fix it by 13 Jul 2023.

## Is CVE-2021-44026 being exploited?

Yes. Attackers have exploited CVE-2021-44026 in the wild since at least 22 Jun 2023.

Public exploit code:

- A demo exploit for CVE-2021-44026, a SQL injection in Roundcube (github_poc): https://github.com/shanglyu/roundcube-cve-2021-44026
- Bug Chain XSS (CVE-2020-35730 and CVE-2023-43770) to SQLi (CVE-2021-44026) (github_poc): https://github.com/skyllpro/CVE-2021-44026-PoC

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-44026 and fix it if it is affected.

What it is: CVE-2021-44026 is a critical SQL injection vulnerability in Debian Debian Linux, published on 19 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2021-44026 in the wild since at least 22 Jun 2023.

Affected packages and fixed versions:
- roundcube (Bitnami): affected all versions; fixed in 1.3.17, 1.4.12

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-44026/ (Markdown: https://insights.sbomify.com/CVE-2021-44026/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44026
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44026
- OSV: https://osv.dev/vulnerability/CVE-2021-44026

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-44026/
Summaries are generated and may contain mistakes; the official description above is the record.