CVE-2026-82263 Logto Server-Side Request Forgery via OIDC SSO Connector Issuer URL
Tenant administrators can exploit an SSRF vulnerability in Logto's OIDC connector to access internal network services and read response data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82263?
CVE-2026-82263 is a high-severity server-side request forgery vulnerability in logto-io logto, published on 28 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-82263?
How do I fix CVE-2026-82263?
No fix has been published for CVE-2026-82263 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-82263 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82263 exists.
Sources
Also known as GHSA-2c8c-r4jf-gp34.