Contao 5.6
Contao 5.6
The Contao 5.6 reached end of service life on Feb 14, 2026 — Contao no longer ships security patches or fixes for it. Our third-party support keeps it safe to run: 24/7 engineers manage issues, remediate vulnerabilities, and help you maintain compliance.
24/7 engineers own your Contao 5.6 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- contao
- release
- 5.6
- product Label
- Contao
- release Label
- 5.6
- codename
- lts
- latest Version
- 5.6.11
- release Date
- 2025-08-18
- maintained
- source Url
- https://endoflife.date/contao
Lifecycle Dates
- End of Service Life
- Feb 14, 2026
- Last OEM Support
- Feb 14, 2026
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for Contao 5.6 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for Contao 5.6?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for Contao 5.6 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
Contao 5.6 Support: Frequently Asked Questions
Is the Contao 5.6 still supported?
Contao ended support for the Contao 5.6 on Feb 14, 2026 — no more patches or fixes from the vendor. Third-party support keeps it covered: our engineers manage issues, remediate vulnerabilities, and help you maintain compliance for as long as you run it.
When is the Contao 5.6 end of service life (EOSL) date?
Contao lists the end of service life for the Contao 5.6 as Feb 14, 2026.
Can I keep using the Contao 5.6 after its EOSL date?
Yes. EOSL means Contao stops issuing patches and support — the software itself keeps running. Third-party support covers it from there: issue management, security vulnerability remediation, and the compliance documentation auditors ask for, for as long as you choose to run it.
How much does third-party support for the Contao 5.6 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location — request a quote and we respond within 24 hours.
Known Vulnerabilities Affecting Contao 5.6
6 published CVEs affect the Contao 5.6. Contao no longer ships security patches for this release — our engineers provide mitigation guidance, workarounds and hardening support.
| CVE | Severity | CVSS | Published | Summary |
|---|---|---|---|---|
| CVE-2025-65960 | MEDIUM | 6.6 | Nov 25, 2025 | Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, back end users with precise control over the contents of template closures can execute arbitrary PHP functions that do not have required parameters. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A workaround for this issue involves manually patching the Contao\Template::once() method. |
| CVE-2025-57757 | MEDIUM | 5.3 | Aug 28, 2025 | Contao is an Open Source CMS. In versions starting from 5.0.0 and prior to 5.3.38 and 5.6.1, if a news feed contains protected news archives, their news items are not filtered and become publicly available in the RSS feed. This issue has been patched in versions 5.3.38 and 5.6.1. A workaround involves not adding protected news archives to the news feed page. |
| CVE-2025-57756 | MEDIUM | 5.3 | Aug 28, 2025 | Contao is an Open Source CMS. In versions starting from 4.9.14 and prior to 4.13.56, 5.3.38, and 5.6.1, protected content elements that are rendered as fragments are indexed and become publicly available in the front end search. This issue has been patched in versions 4.13.56, 5.3.38, and 5.6.1. A workaround involves disabling the front end search. |
| CVE-2025-57759 | MEDIUM | 4.3 | Aug 28, 2025 | Contao is an Open Source CMS. In versions starting from 5.3.0 and prior to 5.3.38 and 5.6.1, under certain conditions, back end users may be able to edit fields of pages and articles without having the necessary permissions. This issue has been patched in versions 5.3.38 and 5.6.1. There are no workarounds. |
| CVE-2025-57758 | MEDIUM | 4.3 | Aug 28, 2025 | Contao is an Open Source CMS. In versions starting from 5.0.0 and prior to 5.3.38 and 5.6.1, the table access voter in the back end doesn't check if a user is allowed to access the corresponding module. This issue has been patched in versions 5.3.38 and 5.6.1. A workaround involves not relying solely on the voter and additionally to check USER_CAN_ACCESS_MODULE. |
| CVE-2025-65961 | LOW | 3.3 | Nov 25, 2025 | Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in the browser in the front end and back end. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A workaround for this issue involves not using the affected templates or patch them manually. |