Quick answers
- Is CVE-2026-57232 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-57232 being exploited in the wild.
- How severe is CVE-2026-57232?
- Low severity, with a CVSS score of 3.1, published 31 July 2026.
- Which products and versions are affected?
- Contao 5.3.35 through 5.3.47, 5.7.0-RC1 through 5.7.8; contao/contao (Packagist) ECOSYSTEM:introduced=5.3.35,fixed=5.3.48; contao/core-bundle (Packagist) ECOSYSTEM:introduced=5.3.35,fixed=5.3.48.
- Is there a fix for CVE-2026-57232?
- Yes. contao/contao (Packagist): upgrade to 5.3.48 or later; contao/core-bundle (Packagist): upgrade to 5.3.48 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-57232 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-57232?
- Check whether you run Contao, contao/contao (Packagist) or contao/core-bundle (Packagist) 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
- contao/contao (Packagist): upgrade to 5.3.48 or later
composer require contao/contao:^5.3.48 - contao/core-bundle (Packagist): upgrade to 5.3.48 or later
composer require contao/core-bundle:^5.3.48
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in the Contao Feed Reader front-end module. The `FeedReaderController::getResponse()` function in `core-bundle/src/Controller/FrontendModule/FeedReaderController.php` iterates over configured RSS feed URLs and passes them to the `feedIo->read()` method without validating the URL scheme or checking for private IP addresses. Because the underlying Symfony HttpClient was not configured with SSRF protections (such as `NoPrivateNetworkHttpClient`), a backend user with permissions to edit modules can trigger requests to internal services, loopback addresses, or cloud metadata endpoints. The vulnerability is addressed in versions 5.3.48 and 5.7.9 by implementing a restricted HTTP client that blocks private network requests.
Affected products
- Contao Contao 5.3.35 through 5.3.47, 5.7.0-RC1 through 5.7.8
Identifiers
- CVE-2026-57232
- GHSA-87mg-5grr-rhwh
Timeline
- 2026-07-13: patched: Fixes committed to repository
- 2026-07-31: advisory: GitHub Advisory and NVD publication