CVE-2026-48784
Medium
Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, UrlGenerator::doGenerate() used strtr() dot-segment encoding that skipped every other chained ../ or ./ segment, allowing attacker-controlled route parameters to generate URLs that collapse to a different path under RFC 3986 normalization. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Sensiolabs Symfony
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-172CWE-172CWE-601Open redirect
How to fix
Update
- sensiolabs symfony5.4.53, 6.4.41, 7.4.13, 8.0.13 or later
- symfony/routing5.4.53, 6.4.41, 7.4.13, 8.0.13 or later
- symfony/symfony5.4.53, 6.4.41, 7.4.13, 8.0.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sensiolabs symfony | v < 5.4.53, 6.0.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 5.4.53, 6.4.41, 7.4.13, 8.0.13 |
| symfony/routingPackagist | v < 5.4.53, 6.0.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 5.4.53, 6.4.41, 7.4.13, 8.0.13 |
| symfony/symfonyPackagist | v < 5.4.53, 6.0.0 ≤ v < 6.4.41, 7.0.0 ≤ v < 7.4.13, 8.0.0 ≤ v < 8.0.13 | 5.4.53, 6.4.41, 7.4.13, 8.0.13 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.