{"id":"CVE-2026-54695","aliases":["GHSA-j8cv-x86q-rj85","PYSEC-2026-2878"],"url":"https://o3.security/vulnerability/CVE-2026-54695","summary":"Pipecat: Telephony WebSocket `/ws` Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID","details":"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.","published":"2026-07-09T18:52:33.008Z","modified":"2026-08-12T03:51:29.252769407Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H"},"epss":{"score":0.00369,"percentile":0.30143,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pipecat-ai","fixedVersion":"1.4.0"}],"fix":{"url":"https://github.com/pipecat-ai/pipecat/commit/3032da53434c5ef01d368654b3551cf21c50dec9","label":"pipecat-ai/pipecat@3032da5"},"references":[{"type":"WEB","url":"https://github.com/pipecat-ai/pipecat/releases/tag/v1.4.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54695.json"},{"type":"ADVISORY","url":"https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54695"},{"type":"FIX","url":"https://github.com/pipecat-ai/pipecat/commit/3032da53434c5ef01d368654b3551cf21c50dec9"},{"type":"FIX","url":"https://github.com/pipecat-ai/pipecat/commit/88440676996e5e548e1aecea5d565e1c48ccf6fa"},{"type":"FIX","url":"https://github.com/pipecat-ai/pipecat/pull/4660"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:29.252769407Z"}}