Detections
Analytics

SCA: security update for PraisonAI, praisonaiagents (GHSA-8x8f-54wf-vv92)

critical Tenable Self-Hosted Container Security Plugin ID 440415

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of
 praisonaiagents, the browser bridge (praisonai browser start) is vulnerable to unauthenticated remote
 session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket
 endpoint. The server binds to 0.0.0.0 by default and only validates the Origin header when one is present,
 meaning any non-browser client that omits the header is accepted without restriction. An unauthenticated
 network attacker can connect, send a start_session message, and the server will route it to the first idle
 browser-extension WebSocket (effectively hijacking that session) and then broadcast all resulting
 automation actions and outputs back to the attacker. This enables unauthorized remote control of connected
 browser automation sessions, leakage of sensitive page context and automation results, and misuse of
 model-backed browser actions in any environment where the bridge is network-reachable. This issue has been
 fixed in versions 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents. (CVE-2026-40289)

Solution

Update the praisonaiagents library and its related packages to version 1.5.140 or later.

See Also

https://github.com/advisories/GHSA-8x8f-54wf-vv92

Plugin Details

Severity: Critical

ID: 440415

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 4/15/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.31

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-40289

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/10/2026

Vulnerability Publication Date: 4/10/2026

Reference Information

CVE: CVE-2026-40289

cwe: CWE-306