CVE-2012-6431: Symfony Allows URI Restrictions Bypass Via Double-Encoded String

medium Affects symfony/http-foundation, symfony/routing, symfony/security, symfony/symfony. Feed 2026.10.29.1, updated 2026-10-28; published 2022-05-17; advisory modified 2024-12-03.

Symfony Allows URI Restrictions Bypass Via Double-Encoded String

Package: symfony/http-foundation Composer
Affected versions: >=2.0.0 and <2.0.19
Fixed in: 2.0.19
Severity: medium
Exploitation: not on CISA KEV · EPSS 2% (79.3th percentile)
Published: 2022-05-17
Source: osv.dev

References

Symfony Allows URI Restrictions Bypass Via Double-Encoded String

Package: symfony/routing Composer
Affected versions: >=2.0.0 and <2.0.19
Fixed in: 2.0.19
Severity: medium
Exploitation: not on CISA KEV · EPSS 2% (79.3th percentile)
Published: 2022-05-17
Source: osv.dev

References

Symfony Allows URI Restrictions Bypass Via Double-Encoded String

Package: symfony/security Composer
Affected versions: >=2.0.0 and <2.0.19
Fixed in: 2.0.19
Severity: medium
Exploitation: not on CISA KEV · EPSS 2% (79.3th percentile)
Published: 2022-05-17
Source: osv.dev

References

Symfony Allows URI Restrictions Bypass Via Double-Encoded String

Package: symfony/symfony Composer
Affected versions: >=2.0.0 and <2.0.19
Fixed in: 2.0.19
Severity: medium
Exploitation: not on CISA KEV · EPSS 2% (79.3th percentile)
Published: 2022-05-17
Source: osv.dev

References

CWE-287

NVD record symfony/http-foundation advisories symfony/routing advisories symfony/security advisories symfony/symfony advisories

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