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NVD Vulnerability Details :
CVE-2026-39980
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-09 Apr, 2026 | 18:17
Updated At-22 Apr, 2026 | 00:27

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arbitrary JavaScript in the context of the OpenCTI platform process during notifier template execution. This vulnerability is fixed in 6.9.5.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Primary3.17.2HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CPE Matches
citeum
citeum
>>opencti>>Versions before 6.9.5(exclusive)
cpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-1336Primarysecurity-advisories@github.com
CWE ID: CWE-1336
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/OpenCTI-Platform/opencti/releases/tag/6.9.5security-advisories@github.com
Product
Release Notes
https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-jv9r-jw2f-rhrfsecurity-advisories@github.com
Vendor Advisory
Hyperlink: https://github.com/OpenCTI-Platform/opencti/releases/tag/6.9.5
Source: security-advisories@github.com
Resource:
Product
Release Notes
Hyperlink: https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-jv9r-jw2f-rhrf
Source: security-advisories@github.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found