Vulnerability advisory

GHSA-3p42-w5ch-gg42

TYPO3 CMS has an Open Redirect Vulnerability via Core Utilities

Published Jun 12, 2026Updated Sep 10, 2026OSV record ↗

Also known as CVE-2026-47347

Severity

CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Affected versions

typo3/cms-core Packagist

All typo3/cms-core advisories →

Affected	Fixed in
All versions before 10.4.57	`10.4.57`Advisories →
Also listed as affected (110) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.14` `v10.4.15` `v10.4.16` `v10.4.17` `v10.4.18` `v10.4.19` `v10.4.2` `v10.4.20` `v10.4.21` `v10.4.22` `v10.4.23` `v10.4.24` `v10.4.25` `v10.4.26` `v10.4.27` `v10.4.28` `v10.4.29` `v10.4.3` `v10.4.30` `v10.4.31` `v10.4.32` `v10.4.33` `v10.4.34` `v10.4.36` `v10.4.37` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9` `v8.7.10` `v8.7.11` `v8.7.12` `v8.7.13` `v8.7.14` `v8.7.15` `v8.7.16` `v8.7.17` `v8.7.18` `v8.7.19` `v8.7.20` `v8.7.21` `v8.7.22` `v8.7.23` `v8.7.24` `v8.7.25` `v8.7.26` `v8.7.27` `v8.7.28` `v8.7.29` `v8.7.30` `v8.7.31` `v8.7.32` `v8.7.7` `v8.7.8` `v8.7.9` `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.25` `v9.5.26` `v9.5.27` `v9.5.28` `v9.5.29` `v9.5.3` `v9.5.30` `v9.5.31` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`
`11.0.0` to before 11.5.51	`11.5.51`Advisories →
Also listed as affected (51) `v11.0.0` `v11.1.0` `v11.1.1` `v11.2.0` `v11.3.0` `v11.3.1` `v11.3.2` `v11.3.3` `v11.4.0` `v11.5.0` `v11.5.1` `v11.5.10` `v11.5.11` `v11.5.12` `v11.5.13` `v11.5.14` `v11.5.15` `v11.5.16` `v11.5.17` `v11.5.18` `v11.5.19` `v11.5.2` `v11.5.20` `v11.5.21` `v11.5.22` `v11.5.23` `v11.5.24` `v11.5.25` `v11.5.26` `v11.5.27` `v11.5.28` `v11.5.29` `v11.5.3` `v11.5.30` `v11.5.31` `v11.5.32` `v11.5.33` `v11.5.34` `v11.5.35` `v11.5.36` `v11.5.37` `v11.5.38` `v11.5.39` `v11.5.4` `v11.5.40` `v11.5.41` `v11.5.5` `v11.5.6` `v11.5.7` `v11.5.8` `v11.5.9`
`12.0.0` to before 12.4.46	`12.4.46`Advisories →
Also listed as affected (53) `v12.0.0` `v12.1.0` `v12.1.1` `v12.1.2` `v12.1.3` `v12.2.0` `v12.3.0` `v12.4.0` `v12.4.1` `v12.4.10` `v12.4.11` `v12.4.12` `v12.4.13` `v12.4.14` `v12.4.15` `v12.4.16` `v12.4.17` `v12.4.18` `v12.4.19` `v12.4.2` `v12.4.20` `v12.4.21` `v12.4.22` `v12.4.23` `v12.4.24` `v12.4.25` `v12.4.26` `v12.4.27` `v12.4.28` `v12.4.29` `v12.4.3` `v12.4.30` `v12.4.31` `v12.4.32` `v12.4.33` `v12.4.34` `v12.4.35` `v12.4.36` `v12.4.37` `v12.4.38` `v12.4.39` `v12.4.4` `v12.4.40` `v12.4.41` `v12.4.42` `v12.4.43` `v12.4.44` `v12.4.45` `v12.4.5` `v12.4.6` `v12.4.7` `v12.4.8` `v12.4.9`
`13.0.0` to before 13.4.31	`13.4.31`Advisories →
Also listed as affected (39) `v13.0.0` `v13.0.1` `v13.1.0` `v13.1.1` `v13.2.0` `v13.2.1` `v13.3.0` `v13.3.1` `v13.4.0` `v13.4.1` `v13.4.10` `v13.4.11` `v13.4.12` `v13.4.13` `v13.4.14` `v13.4.15` `v13.4.16` `v13.4.17` `v13.4.18` `v13.4.19` `v13.4.2` `v13.4.20` `v13.4.21` `v13.4.22` `v13.4.23` `v13.4.24` `v13.4.25` `v13.4.26` `v13.4.27` `v13.4.28` `v13.4.29` `v13.4.3` `v13.4.30` `v13.4.4` `v13.4.5` `v13.4.6` `v13.4.7` `v13.4.8` `v13.4.9`
`14.0.0` to before 14.3.3	`14.3.3`Advisories →
Also listed as affected (9) `v14.0.0` `v14.0.1` `v14.0.2` `v14.1.0` `v14.1.1` `v14.2.0` `v14.3.0` `v14.3.1` `v14.3.2`

Description

Problem

Applications that use GeneralUtility::sanitizeLocalUrl to allow only local URLs are vulnerable to open redirect attacks if the URL is used after it has passed the aforementioned sanitization checks. This enables attackers to redirect users to external content and carry out phishing attacks.

Solution

Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.

Credits

TYPO3 CMS thanks Alexandre Romao for reporting this issue, and TYPO3 core & security team member Benjamin Franzke for fixing it.

Resources

TYPO3-CORE-SA-2026-009