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

CVSS 7.5 · High

Affected Version Matrix 1

VendorProductVersion RangeStatus
pipecat-aipipecat< 1.4.0affected
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I. Basic Information for CVE-2026-54695

Vulnerability Information
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Vulnerability Title
Pipecat: Telephony WebSocket `/ws` Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
pipecat-aipipecat < 1.4.0 -

II. Public POCs for CVE-2026-54695

#POC DescriptionSource LinkShenlong Link
AI-Generated POCVerified env Premium
Qwen3.6-35B-A3B · 7844 chars
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III. Intelligence Information for CVE-2026-54695

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Patches & Fixes for CVE-2026-54695 (2)

Vendor Advisories for CVE-2026-54695 (1)

IV. Related Vulnerabilities

Same product: pipecat
Same vendor: pipecat-ai
Same weakness: CWE-862

V. Comments for CVE-2026-54695

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