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Related vulnerabilities
CVE-2026-21886 (GCVE-0-2026-21886)
Vulnerability from cvelistv5 – Published: 2026-03-17 15:26 – Updated: 2026-03-17 16:09
VLAI
Title
OpenCTI's GraphQL Mutations Allow Deletion of Unrelated Entities
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/OpenCTI-Platform/opencti/secur… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenCTI-Platform | opencti |
Affected:
< 6.9.1
|
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"metrics": [
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
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"confidentialityImpact": "NONE",
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PYSEC-2026-117
Vulnerability from pysec - Published: 2026-03-17 16:16 - Updated: 2026-05-20 09:19
VLAI
Details
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.
Severity
8.1 (High)
Impacted products
| Name | purl | pycti | pkg:pypi/pycti |
|---|
Aliases
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"aliases": [
"CVE-2026-21886",
"GHSA-mhmx-j75v-2m6x"
],
"details": "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.",
"id": "PYSEC-2026-117",
"modified": "2026-05-20T09:19:14.662198Z",
"published": "2026-03-17T16:16:19.953Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-mhmx-j75v-2m6x"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}