CVE-2026-47212

Medium

Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, TwilioRequestParser::doParse() received the configured webhook secret but ignored the X-Twilio-Signature HMAC header, allowing unauthenticated POST requests to inject forged Twilio status payloads. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.

SeverityMedium
CVSS5.3
Exploit probability—
ProductSensiolabs Symfony
PublishedJul 14, 2026
First seenJul 14, 2026

How to fix

Update
  • sensiolabs symfony6.4.40, 7.4.12, 8.0.12 or later
  • symfony/symfony6.4.40, 7.4.12, 8.0.12 or later
  • symfony/twilio-notifier6.4.40, 7.4.12, 8.0.12 or later

Affected products

ProductAffected versionsFixed in
sensiolabs symfony6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.126.4.40, 7.4.12, 8.0.12
symfony/symfonyPackagist6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.126.4.40, 7.4.12, 8.0.12
symfony/twilio-notifierPackagist6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.126.4.40, 7.4.12, 8.0.12

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