> CVE-2026-55526 [HIGH]

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PUBLISHED
2026-08-25 15:16
MODIFIED
2026-08-25 15:16
CVSS_SCORE V3
8.5
EPSS (Prob. Exploit)
0.36%
Top 71.7%
DATA SOURCES:
NVD 🔗 2026-08-25 CWE MITRE 🔗 2026-09-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-29 OSV 🔗 2026-08-31

> DESCRIPTION

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, spider_tools._host_is_blocked() does not resolve ordinary hostnames before scrape_page fetches them. A hostname such as 127.0.0.1.nip.io passes validation and resolves to loopback, permitting internal HTTP access. The fix uses socket.getaddrinfo and fails closed on DNS errors. This issue is fixed in version 1.6.58.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
EXPLOITABILITY
3.1
IMPACT
4.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-350 CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action - The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname. | CWE-918: Server-Side Request Forgery (SSRF) - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

> GITHUB SECURITY ADVISORY

GHSA-x44h-65qv-cw74 HIGH

praisonaiagents has an SSRF protection bypass in `spider_tools._host_is_blocked()` via DNS-resolved hostnames (`127.0.0.1.nip.io`)

AFFECTED PACKAGES:
PIP / praisonaiagents
< 1.6.58
Fixed in: 1.6.58

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

PraisonAI: SSRF protection bypass in `spider_tools._host_is_blocked()` via DNS-resolved hostnames (`127.0.0.1.nip.io`)

AFFECTED PACKAGES:
Unknown / Unknown
581 versions affected
ALIASES:
GHSA-x44h-65qv-cw74

> HISTORIQUE DES MODIFICATIONS

Première apparition
25/08/2026 15:16
Source: NVD
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action - The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it do...
Total des modifications: 1 Dernière mise à jour: 1 month ago

> REFERENCES

https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828f...
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x44h-65qv-cw...
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