{"id":"CVE-2026-47212","aliases":["GHSA-55rj-x2vc-4whq"],"url":"https://o3.security/vulnerability/CVE-2026-47212","summary":"Symfony: Twilio Notifier Webhook Parser Never Verifies the X-Twilio-Signature HMAC: Unauthenticated Webhook Event Injection","details":"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.","published":"2026-07-14T19:00:30.703Z","modified":"2026-08-12T03:51:15.102972441Z","cvss":null,"epss":{"score":0.00238,"percentile":0.15179,"asOf":"2026-08-20"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"6.4.40"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"7.4.12"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"8.0.12"},{"ecosystem":"Packagist","name":"symfony/twilio-notifier","fixedVersion":"6.4.40"},{"ecosystem":"Packagist","name":"symfony/twilio-notifier","fixedVersion":"7.4.12"},{"ecosystem":"Packagist","name":"symfony/twilio-notifier","fixedVersion":"8.0.12"}],"fix":{"url":"https://github.com/symfony/symfony/commit/8545fb2af6c07dfb5ef0fc8d9bccf86db2c94356","label":"symfony/symfony@8545fb2"},"references":[{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v6.4.40"},{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v7.4.12"},{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v8.0.12"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47212.json"},{"type":"ADVISORY","url":"https://github.com/symfony/symfony/security/advisories/GHSA-55rj-x2vc-4whq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47212"},{"type":"FIX","url":"https://github.com/symfony/symfony/commit/8545fb2af6c07dfb5ef0fc8d9bccf86db2c94356"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.102972441Z"}}