Auth bypass in Pipecat
CVE-2026-54695
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Pipecat
- Pipecat-Ai Pipecat — versions < 1.4.0
Weakness classification (CWE)
References
- github.com/pipecat-ai/pipecat/commit/3032da53434c5ef01d368654b3551cf21c50dec9 (Patch)
- github.com/pipecat-ai/pipecat/commit/88440676996e5e548e1aecea5d565e1c48ccf6fa (Patch)
- github.com/pipecat-ai/pipecat/pull/4660 (Patch, Issue Tracking)
- github.com/pipecat-ai/pipecat/releases/tag/v1.4.0 (Patch, Issue Tracking)
- github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85 (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-54695?
- CVE-2026-54695 is a high-severity vulnerability in Pipecat, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-07-09.
- How severe is CVE-2026-54695?
- High severity. CVSS v3 base score is 7.5 out of 10.