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CVE-2026-47767

HIGH
8.3
CVSS 4.0
Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty($_GET), but parse_str() and the web SAPI can disagree, allowing a crafted query string to leave $_GET empty while $_SERVER['argv'] still carries attacker-controlled --env or --no-debug flags that change APP_ENV or APP_DEBUG. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

Metadata

CVE ID
CVE-2026-47767
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-19 22:36 UTC
Published
2026-07-14 18:38 UTC
Last updated
2026-07-14 18:38 UTC
Primary CWE
CWE-436
CWE-436: Interpretation Conflict
Vendor / Product
symfony / symfony
Sources
cve.org  ·  NVD

Severity & Metrics

8.3 HIGH CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products (2)
VendorProductPlatformVersions
symfony runtime — >= 5.4.46, < 5.4.52, >= 6.4.14, < 6.4.40, >= 7.1.7, < 7.4.12, >= 8.0.0-BETA1, < 8.0.12
symfony symfony — >= 5.4.46, < 5.4.52, >= 6.4.14, < 6.4.40, >= 7.1.7, < 7.4.12, >= 8.0.0-BETA1, < 8.0.12
Weakness (CWE)
CWESourceDescription
CWE-436 cna CWE-436: Interpretation Conflict
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.3 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
References (6)
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