CVE-2026-4984 - Vulnerability Analysis

Overview

Twilio integration webhook handler contains an information disclosure caused by lack of validation of 'X-Twilio-Signature' and fetching user-controlled URLs with credentials, letting attackers obtain accountSID and authToken, exploit requires sending forged webhook payload.

Severity & Score

Impact

Attackers can obtain Twilio credentials, leading to full account compromise and unauthorized actions.

Mitigation

Validate 'X-Twilio-Signature' on incoming webhook requests and avoid including credentials in requests to user-controlled URLs.

References

• https://www.tenable.com/security/research/tra-2026-22

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 27, 2026

🟠 CVE-2026-4984 - High (8.2) The Twilio integration webhook handler accepts any POST request without validating Twilio's 'X-Twilio-Signature'. When processing media messages, it fetches user-controlled URLs ('MediaUrlN' parameters) using HTTP requests that include the integr... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-4984/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner