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CVE-2025-61782— Open Redirect in OpenCTI's SAML Authentication Flow

Quick assessment

Affected
OpenCTI-Platform opencti
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenCTI是OpenCTI开源的一个开放网络威胁情报平台。 OpenCTI 6.8.3之前版本存在输入验证错误漏洞，该漏洞源于SAML身份验证端点中RelayState参数操作不当，可能导致开放重定向攻击。

CVSS 5.4 · Medium EPSS 0.26% · P17
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I. Basic Information for CVE-2025-61782

Vulnerability Information
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Vulnerability Title
Open Redirect in OpenCTI's SAML Authentication Flow
Source: CVE Program / CVE List V5
Vulnerability Description
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.3, an open redirect vulnerability exists in the OpenCTI platform's SAML authentication endpoint (/auth/saml/callback). By manipulating the RelayState parameter, an attacker can force the server to issue a 302 redirect to any external URL, enabling phishing, credential theft, and arbitrary site redirection. This issue has been patched in version 6.8.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenCTI 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenCTI是OpenCTI开源的一个开放网络威胁情报平台。 OpenCTI 6.8.3之前版本存在输入验证错误漏洞，该漏洞源于SAML身份验证端点中RelayState参数操作不当，可能导致开放重定向攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenCTI-Platform opencti < 6.8.3 -

II. Public POCs for CVE-2025-61782

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III. Intelligence Information for CVE-2025-61782

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Patches & Fixes for CVE-2025-61782 (1)

Vendor Advisories for CVE-2025-61782 (1)

Other References for CVE-2025-61782 (1)

IV. Related Vulnerabilities

Same product: opencti
Same vendor: OpenCTI-Platform
Same weakness: CWE-601