> CVE-2026-21886 [MEDIUM]

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PUBLISHED
2026-03-17 16:16
MODIFIED
2026-03-17 16:16
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.24%
Top 86.3%
DATA SOURCES:
NVD 🔗 2026-03-17 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25

> DESCRIPTION

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.9.1, the GraphQL mutations "IndividualDeletionDeleteMutation" is intended to allow users to delete individual entity objects respectively. However, it was observed that this mutation can be misused to delete unrelated and sensitive objects such as analyses reports etc. This behavior stems from the lack of validation in the API to ensure that the targeted object is contextually related to the mutation being executed. Version 6.9.1 fixes the issue.

> 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:U/C:N/I:N/A:H
EXPLOITABILITY
2.8
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-285 CWE-566 CWE-915

> CWE DETAILED DESCRIPTIONS

CWE-285: Improper Authorization - The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. | CWE-566: Authorization Bypass Through User-Controlled SQL Primary Key - The product uses a database table that includes records that should not be accessible to an actor, but it executes a SQL statement with a primary key that can be controlled by that actor. | CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes - The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/03/2026 16:16
Source: NVD
📊 ENRICHISSEMENT 01/04/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-285: Improper Authorization - The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. | CWE-566: Authorization...
Total des modifications: 1 Dernière mise à jour: 7 months ago

> REFERENCES

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-mhmx-j75v-2...
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