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CVE-2026-82263

6.8 · MEDIUM

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.

Published Aug 28, 2026CWE-918EPSS 0.46%

Overview

CVE-2026-82263 is a medium-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/logto-io/logtoGitHubgithub.com/logto-io/logto/blob/v1.42.0/packages/core/src/sso/OidcConnector/utils.tsGitHubgithub.com/logto-io/logto/commit/16f4b2e732d5114ac98646c9370ec6ab61d6ed26GitHubgithub.com/logto-io/logto/issues/9465Refwww.vulncheck.com/advisories/logto-server-side-request-forgery-via-oidc-sso-connector-issuer-urlGitHubgithub.com/logto-io/logto/issues/9465

How CyberStrike helps

Frequently asked questions

What is CVE-2026-82263?

CVE-2026-82263 is a medium-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2026-82263?

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-82263?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-82263?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-82263 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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