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CVE-2026-48784

MEDIUM
5.1
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-48784
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-22 20:18 UTC
Published
2026-07-14 19:04 UTC
Last updated
2026-07-14 19:04 UTC
Primary CWE
CWE-172
CWE-172: Encoding Error
Vendor / Product
symfony / symfony
Sources
cve.org  ·  NVD

Severity & Metrics

5.1 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Affected products (2)
VendorProductPlatformVersions
symfony routing — < 5.4.53, >= 6.0.0-BETA1, < 6.4.41, >= 7.0.0-BETA1, < 7.4.13, >= 8.0.0-BETA1, < 8.0.13
symfony symfony — < 5.4.53, >= 6.0.0-BETA1, < 6.4.41, >= 7.0.0-BETA1, < 7.4.13, >= 8.0.0-BETA1, < 8.0.13
Weakness (CWE)
CWESourceDescription
CWE-172 cna CWE-172: Encoding Error
CWE-601 cna CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.1 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References (5)
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