CVE-2026-55529

6.9 Moyenne

Publiée le 25/08/2026 à 17:16 · Modifiée le 09/09/2026 à 23:07 · Analyse NVD reportée · Source : security-advisories@github.com

Description

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the MCP HTTP Stream _validate_origin method accepts request_origin.startswith(allowed), so the attacker-controlled localhost.evil.example HTTP origin matches the localhost allowlist. Without an API key, a malicious webpage can submit tools/call requests to the local MCP server and execute exposed tools. This issue is fixed in version 4.6.58.

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Produits concernés

MervinPraison PraisonAI

Scores CVSS

Version	Score	Source	Vecteur
3.1	6.9 Moyenne	security-advisories@github.com	`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N`

Faiblesses (CWE)

CWE-306
CWE-346

Références

https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wj6g-v78p-6fx3
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wj6g-v78p-6fx3

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories