CVE-2026-8827: TYPO3 tt_address SQL injection in AddressRepository

CVE-2026-8827 · Severity: high · CVSS 4 · Published 2026-05-19

The TYPO3 Address List (tt_address) extension contains a security flaw that could allow unauthorized access to database information. While the vulnerable component is not used by the extension itself in a standard setup, it poses a risk if other custom website features utilize this specific component. If exploited, an attacker could potentially view sensitive data stored in the website's database.

Vendors: Packagist, Typo3.

Quick answers

Is CVE-2026-8827 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-8827 being exploited in the wild.
How severe is CVE-2026-8827?
High severity, with a CVSS score of 4, published 19 May 2026.
Which products and versions are affected?
friendsoftypo3/tt-address (Packagist) ECOSYSTEM:introduced=10.0.0,fixed=10.0.1; Typo3 Tt Address < 8.1.2, >= 9.0.0 < 9.1.1, >= 10.0.0 < 10.0.1, 10.0.0, 9.0.0 - 9.1.0, 8.1.1 and below.
Is there a fix for CVE-2026-8827?
Yes. friendsoftypo3/tt-address (Packagist): upgrade to 10.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-8827 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-8827?
Check whether you run friendsoftypo3/tt-address (Packagist) or Typo3 Tt Address at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • friendsoftypo3/tt-address (Packagist): upgrade to 10.0.1 or later
    composer require friendsoftypo3/tt-address:^10.0.1

Technical details

An SQL injection vulnerability exists in the TYPO3 extension 'tt_address' (Address List) within the AddressRepository::getSqlQuery() method. The root cause is the construction of database queries using unsanitized user input. While the method is not called by the extension's default code, it is accessible to third-party extensions or custom code. A remote attacker could exploit this via network requests if a custom implementation passes untrusted input to this method, potentially leading to unauthorized data exfiltration. The issue is resolved in versions 8.1.2, 9.1.1, and 10.0.1.

Affected products

  • TYPO3 tt_address < 8.1.2, >= 9.0.0 < 9.1.1, >= 10.0.0 < 10.0.1

Identifiers

  • CVE-2026-8827
  • GHSA-3h52-6v6j-6wwv

Timeline

  • 2026-05-19: disclosed
  • 2026-05-19: advisory
  • 2026-06-29: other: Advisory updated

References

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