> CVE-2026-34460 [MEDIUM]

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PUBLISHED
2026-06-02 16:16
MODIFIED
2026-06-02 16:16
CVSS_SCORE V3
5.4
EPSS (Prob. Exploit)
0.13%
Top 97.5%
DATA SOURCES:
NVD 🔗 2026-06-02 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-11-02

> DESCRIPTION

NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause a victim's browser to navigate to it, resulting in the victim's session being authenticated as the attacker-linked account (OAuth login CSRF / session swapping). This is patched in version 2.2.5.

> 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:N/UI:R/S:U/C:L/I:L/A:N
EXPLOITABILITY
2.8
IMPACT
2.5

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée 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
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-302 CWE-346 CWE-352

> CWE DETAILED DESCRIPTIONS

CWE-302: Authentication Bypass by Assumed-Immutable Data - The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the attacker. | CWE-346: Origin Validation Error - The product does not properly verify that the source of data or communication is valid. | CWE-352: Cross-Site Request Forgery - The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

NamelessMC: OAuth callback `state` is not validated, allowing login CSRF / session swapping

AFFECTED PACKAGES:
Unknown / Unknown
18 versions affected
ALIASES:
GHSA-pmpw-2xvh-5xj6

> HISTORIQUE DES MODIFICATIONS

Première apparition
02/06/2026 16:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-302: Authentication Bypass by Assumed-Immutable Data - The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the...
Nouvelle valeur:
CWE-302: Authentication Bypass by Assumed-Immutable Data - The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the...
📊 ENRICHISSEMENT 01/07/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-302: Authentication Bypass by Assumed-Immutable Data - The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the...
Total des modifications: 2 Dernière mise à jour: 6 days ago

> REFERENCES

https://github.com/NamelessMC/Nameless/security/advisories/GHSA-pmpw-2xvh-5xj6
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