HTTP Host Header Injection
Meta
- CVSS:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C(3.5)
Problem
It has been discovered that TYPO3 CMS is susceptible to host spoofing due to improper validation of the HTTP Host header. TYPO3 uses the HTTP Host header, for example, to generate absolute URLs during the frontend rendering process. Since the host header itself is provided by the client, it can be forged to any value, even in a name-based virtual hosts environment.
This vulnerability is the same as described in TYPO3-CORE-SA-2014-001 (CVE-2014-3941). A regression, introduced during TYPO3 v11 development, led to this situation. The already existing setting $GLOBALS['TYPO3_CONF_VARS']['SYS']['trustedHostsPattern'] (used as an effective mitigation strategy in previous TYPO3 versions) was not evaluated anymore, and reintroduced the vulnerability.
Solution
Update your instance to TYPO3 version 11.5.0 which addresses the problem described.
Credits
Thanks to TYPO3 framework merger Benjamin Franzke who reported and fixed the issue.
References
- TYPO3-CORE-SA-2021-015
- CVE-2014-3941 reintroduced in TYPO3 v11.0.0
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | typo3/cms | >= 11.0.0, < 11.5.0 | 11.5.0 |
| Paquete de Composer | typo3/cms-core | >= 11.0.0, < 11.5.0 | 11.5.0 |
Referencias
- https://github.com/TYPO3/typo3/security/advisories/GHSA-m2jh-fxw4-gphm
- https://nvd.nist.gov/vuln/detail/CVE-2014-3941
- https://nvd.nist.gov/vuln/detail/CVE-2021-41114
- https://github.com/TYPO3/typo3/commit/5cbff85506cebe343e5ae59228977547cf8e3cf4
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-41114.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-41114.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2021-015
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L- Debilidad (CWE)
CWE-20, CWE-644- Plataforma
- Composer
- Paquete
typo3/cms, typo3/cms-core- Publicada
- 05.10.2021
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-m2jh-fxw4-gphm - CC BY 4.0
Historial de vulnerabilidades: typo3/cms-core
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 128
- Primera → última
- 09.2018 09.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 1
- Alta 35
- Media 84
- Baja 8
Divulgaciones por año
- 2018: 2
- 2019: 0
- 2020: 13
- 2021: 15
- 2022: 34
- 2023: 3
- 2024: 38
- 2025: 8
- 2026: 15
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HTTP Host Header Injection esta entrada
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