CVE-2026-48784

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/symfony/symfony/commit/4b63c3a3f7af04ecd79c89a594b0b02a01990b1d	Patch
https://github.com/symfony/symfony/releases/tag/v5.4.53	Product Release Notes
https://github.com/symfony/symfony/releases/tag/v6.4.41	Product Release Notes
https://github.com/symfony/symfony/releases/tag/v7.4.13	Product Release Notes
https://github.com/symfony/symfony/security/advisories/GHSA-h5x3-xfc9-m39h	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony::::::::

History

No history.

Information

Published : 2026-07-14 20:17

Updated : 2026-07-15 14:44

NVD link : CVE-2026-48784

Mitre link : CVE-2026-48784

CVE.ORG link : CVE-2026-48784

JSON object : View

Products Affected

sensiolabs

symfony

CWE

CWE-172

Encoding Error

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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