logto-io Logto up to 1.42.0 OIDC SSO Connector Creation Endpoint issuer server-side request forgery

Summaryinfo

A vulnerability classified as problematic has been found in logto-io Logto up to 1.42.0. This affects an unknown function of the component OIDC SSO Connector Creation Endpoint. The manipulation of the argument issuer leads to server-side request forgery. This vulnerability is traded as CVE-2026-82263. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in logto-io Logto up to 1.42.0. It has been rated as problematic. This issue affects some unknown processing of the component OIDC SSO Connector Creation Endpoint. The manipulation of the argument issuer with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-82263 since 08/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/28/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• logto-io

Name

• Logto

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42.0

Website

• Product: https://github.com/logto-io/logto/

CPE 2.3info

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