CVE-2026-54695: pipecat Auth Bypass — Exploit & Fix

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H

EPSS — Exploit Prediction

0.0037

Probability of exploitation

0.30%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
pipecat	pipecat	< 1.4.0

References

Advisories & Patches

https://github.com/pipecat-ai/pipecat/commit/3032da53434c5ef01d368654b3551cf21c50dec9 https://github.com/pipecat-ai/pipecat/commit/88440676996e5e548e1aecea5d565e1c48ccf6fa https://github.com/pipecat-ai/pipecat/pull/4660 https://github.com/pipecat-ai/pipecat/releases/tag/v1.4.0 https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85 https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85

Exploits

https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85 https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-j8cv-x86q-rj85

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-54695? +

CVE-2026-54695 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0037, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-54695? +

CVE-2026-54695 affects products from pipecat, specifically: pipecat. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-54695? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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