# CVE-2026-8827: SQL Injection in extension "Address List" (tt_address)

> SQL injection in TYPO3 Address List extension allows attackers to manipulate database queries if custom code calls the vulnerable method with untrusted input.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 May 2026
- **Updated:** 19 May 2026
- **Also known as:** GHSA-3h52-6v6j-6wwv

## What is CVE-2026-8827?

CVE-2026-8827 is a high-severity SQL injection vulnerability in TYPO3 Extension "Address List", published on 19 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The AddressRepository::getSqlQuery() method constructs a database query without properly sanitizing user input, leading to SQL Injection. The method is not invoked anywhere within the extension itself and therefore poses no direct risk in a default installation. However, custom extensions that call this method with untrusted input would expose the site to SQL injection.

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

## Which versions are affected by CVE-2026-8827?

6 open source packages ship an affected version, including friendsoftypo3/tt-address.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `friendsoftypo3/tt-address` | Packagist | All versions | 8.1.2 |
| `friendsoftypo3/tt-address` | Packagist | All versions | 8.1.2 |
| `friendsoftypo3/tt-address` | Packagist | From 10.0.0 | 10.0.1 |
| `friendsoftypo3/tt-address` | Packagist | From 10.0.0 | 10.0.1 |
| `friendsoftypo3/tt-address` | Packagist | From 9.0.0 | 9.1.1 |
| `friendsoftypo3/tt-address` | Packagist | From 9.0.0 | 9.1.1 |

## How do I fix CVE-2026-8827?

Upgrade friendsoftypo3/tt-address to a fixed version for your release line: 8.1.2, 10.0.1 or 9.1.1.

## Is CVE-2026-8827 being exploited?

There is no known exploitation of CVE-2026-8827 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-8827 and fix it if it is affected.

What it is: CVE-2026-8827 is a high-severity SQL injection vulnerability in TYPO3 Extension "Address List", published on 19 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-8827 in the wild and no public exploit code.

Affected packages and fixed versions:
- friendsoftypo3/tt-address (Packagist): affected all versions; fixed in 8.1.2
- friendsoftypo3/tt-address (Packagist): affected all versions; fixed in 8.1.2
- friendsoftypo3/tt-address (Packagist): affected from 10.0.0; fixed in 10.0.1
- friendsoftypo3/tt-address (Packagist): affected from 10.0.0; fixed in 10.0.1
- friendsoftypo3/tt-address (Packagist): affected from 9.0.0; fixed in 9.1.1
- friendsoftypo3/tt-address (Packagist): affected from 9.0.0; fixed in 9.1.1

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-2026-8827/ (Markdown: https://insights.sbomify.com/CVE-2026-8827/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-8827
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-8827
- OSV: https://osv.dev/vulnerability/CVE-2026-8827

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-8827/
Summaries are generated and may contain mistakes; the official description above is the record.