CVE-2026-82263
Logto Server-Side Request Forgery via OIDC SSO Connector Issuer URL
- State
- Published
- Severity
- 8.2 High
- Published
- Aug 28, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N | VulnCheck |
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
logtologto-io |
|
References
- GitHub Issue #9465issue-tracking
- https://github.com/logto-io/logtoproduct
- Vulnerable code: utils.tstechnical-description
- Fix commitpatch
- VulnCheck Advisory: Logto Server-Side Request Forgery via OIDC SSO Connector Issuer URLthird-party-advisory
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