---
title: "CVE-2025-62373: Pipecat: Remote Code Execution by Pickle Deserialization Through LivekitFrameSerializer"
url: https://erroneo.us/security/cve/CVE-2025-62373/
description: "CVE-2025-62373 (pipecat-ai (PyPI)): Pipecat is an open-source Python framework for building real-time voice and multimodal conversational agents. Versions…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-04-23
date_modified: 2026-04-23
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-62373"
kev: false
cvss: 9.8
epss: 0.00701
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-62373: Pipecat: Remote Code Execution by Pickle Deserialization Through LivekitFrameSerializer

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.7% , percentile 53: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 53% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes pipecat-ai (PyPI) >= 0.0.41, < 0.0.94, fixed in 0.0.94 . Check your lockfile, including transitive dependencies.

## What it is

Pipecat is an open-source Python framework for building real-time voice and multimodal conversational agents. Versions 0.0.41 through 0.0.93 have a vulnerability in LivekitFrameSerializer – an optional, non-default, undocumented frame serializer class (now deprecated) intended for LiveKit integration. The class's deserialize() method uses Python's pickle.loads() on data received from WebSocket clients without any validation or sanitization. This means that a malicious WebSocket client can send a crafted pickle payload to execute arbitrary code on the Pipecat server. The vulnerable code resides in src/pipecat/serializers/livekit.py (around line 73), where untrusted WebSocket message data is passed directly into pickle.loads() for deserialization. If a Pipecat server is configured to use LivekitFrameSerializer and is listening on an external interface (e.g. 0.0.0.0), an attacker on the network (or the internet, if the service is exposed) could achieve remote code execution (RCE) on the server by sending a malicious pickle payload. Version 0.0.94 contains a fix. Users of Pipecat should avoid or replace unsafe deserialization and improve network security configuration. The best mitigation is to stop using the vulnerable LivekitFrameSerializer altogether. Those who require LiveKit functionality should upgrade to the latest Pipecat version and switch to the recommended LiveKitTransport or another secure method provided by the framework. Additionally, always follow secure coding practices: never trust client-supplied data, and avoid Python pickle (or similar unsafe deserialization) in network-facing components.

## Affected packages

- PyPI `pipecat-ai` >= 0.0.41, < 0.0.94 → fixed: 0.0.94

## Affected products (CVE record)

- pipecat-ai pipecat: >= 0.0.41, < 0.0.94

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.70% probability of exploitation activity in the next 30 days; percentile 53.

## Sources

- [GitHub Advisory GHSA-c2jg-5cp7-6wc7](https://github.com/advisories/GHSA-c2jg-5cp7-6wc7)
- [CVE.org record CVE-2025-62373](https://www.cve.org/CVERecord?id=CVE-2025-62373)
- [NVD entry CVE-2025-62373](https://nvd.nist.gov/vuln/detail/CVE-2025-62373)
- [github.com](https://github.com/pipecat-ai/pipecat/security/advisories/GHSA-c2jg-5cp7-6wc7)
- [github.com](https://github.com/pipecat-ai/pipecat/releases/tag/v0.0.94)

---
Source page: https://erroneo.us/security/cve/CVE-2025-62373/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt