CVE-2026-55536
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, Browser Server _handle_connection() checks Chrome extension origins with re.match() and the unanchored expression chrome-extension://[a-z0-9]{32}. Extra trailing characters pass before websocket.accept(), allowing start_session commands and unauthorized browser automation. This issue is fixed in version 4.6.58.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS probability
- 0.29%
- CWE
- CWE-284, CWE-625
- Published
- 2026-08-25
- Last modified
- 2026-08-28
Affected products
- MervinPraison PraisonAI
Weakness type
Related vulnerabilities
- CVE-2026-78084 — Joomla Extension - joomshaper.com - Missing Access Control in Gallery Image Management in SP Property < 4.1.4
- CVE-2026-50165 — alf.io has Improper Access Control for Organization Owners that Exposes System Secrets
- CVE-2026-86774 — Snipe-IT before 8.7.0 Broken Access Control via AssetModelPolicy
- CVE-2026-19625 — IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities
- CVE-2026-75998 — ColdFusion | Improper Access Control (CWE-284)
- CVE-2026-86672 — ningzichun Student Management System Backup example.7z information disclosure
- CVE-2026-81963 — Windows Update Stack Elevation of Privilege Vulnerability
- CVE-2026-77487 — SQL Server Elevation of Privilege Vulnerability