CVE-2026-48489

HIGH

Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes

Title source: cna
STIX 2.1

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, DefaultAuthenticationFailureHandler honored the request-supplied _failure_path parameter when failure_forward: true was enabled, allowing an unauthenticated failing login request to dispatch a subrequest to access_control-protected GET routes that skipped firewall listeners. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.

References (5)

Core 5

Scores

CVSS v3 7.5
EPSS 0.0047
EPSS Percentile 38.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (9)
sensiolabs/symfony < 5.4.53
symfony/security-http < 5.4.53
symfony/security-http >= 6.0.0-BETA1, < 6.4.41
symfony/security-http >= 7.0.0-BETA1, < 7.4.13
symfony/security-http >= 8.0.0-BETA1, < 8.0.13
symfony/symfony < 5.4.53
symfony/symfony >= 6.0.0-BETA1, < 6.4.41
symfony/symfony >= 7.0.0-BETA1, < 7.4.13
symfony/symfony >= 8.0.0-BETA1, < 8.0.13
Published Jul 14, 2026
Tracked Since Jul 15, 2026