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Vulnerability · Published Jul 9, 2026 · Assigned by GitHub_M

CVE-2026-54695Pipecat: Telephony WebSocket `/ws` Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID

High 7.5

In plain English

A high-severity missing authorization in pipecat from pipecat-ai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 53.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Pipecat is an open-source Python framework for building real-time voice and multimodal conversational agents. Prior to 1.4.0, the pipecat development runner registers a /ws WebSocket endpoint for telephony testing that accepts connections without authentication, reads an attacker-supplied callSid from a Twilio stream-start handshake in src/pipecat/runner/utils.py, and passes it to TwilioFrameSerializer so the server can issue an authenticated Twilio REST API hang-up request with the server operator's credentials; equivalent unauthenticated call-control sinks exist for Telnyx and Plivo. This issue is fixed in version 1.4.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIpipecat-ai1.4.0GHSA-j8cv-x86q-rj85
PyPIpipecat-ai1.4.0PYSEC-2026-2878

Affected products (as reported)

VendorProductVersions
pipecat-ai pipecat < 1.4.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H

References