CVE-2026-82263— Logto Server-Side Request Forgery via OIDC SSO Connector Issuer URL
Quick assessment
Affected
logto-io logto
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.
Logto Logto是Logto社区开源的一个面向 SaaS 和 AI 应用的现代化身份验证基础架构。 Logto 1.42.0及之前版本存在服务端请求伪造漏洞，该漏洞源于OIDC SSO连接器创建端点未验证issuer URL参数，可能导致具有Management API凭据的租户管理员提供任意内部URL，向私有网络服务发起HTTP GET请求，并在API响应中获取响应内容。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-82263
Vulnerability Information
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Vulnerability Title
Logto Server-Side Request Forgery via OIDC SSO Connector Issuer URL
Source: CVE Program / CVE List V5
Vulnerability Description
Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbitrary internal URLs to trigger HTTP GET requests to private network services, with response content returned in API responses.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Logto 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Logto Logto是Logto社区开源的一个面向 SaaS 和 AI 应用的现代化身份验证基础架构。 Logto 1.42.0及之前版本存在服务端请求伪造漏洞，该漏洞源于OIDC SSO连接器创建端点未验证issuer URL参数，可能导致具有Management API凭据的租户管理员提供任意内部URL，向私有网络服务发起HTTP GET请求，并在API响应中获取响应内容。
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
II. Public POCs for CVE-2026-82263
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-82263 (1)
Vendor Pages for CVE-2026-82263 (1)
Other References for CVE-2026-82263 (1)
IV. Related Vulnerabilities
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Same vendor: logto-io
-
CVE-2026-56739
Logto: SSRF via Webhooks and Custom OAuth2 Connector UserInf -
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Same weakness: CWE-918
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V. Comments for CVE-2026-82263
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