Coroot up to 1.24.5 MCP OAuth Dynamic Client Registration Endpoint redirect

Summaryinfo

A vulnerability classified as problematic has been found in Coroot up to 1.24.5. This affects an unknown function of the component MCP OAuth Dynamic Client Registration Endpoint. Performing a manipulation results in redirect. This vulnerability is known as CVE-2026-79786. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Coroot up to 1.24.5. It has been classified as problematic. This affects some unknown processing of the component MCP OAuth Dynamic Client Registration Endpoint. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on integrity. The summary by CVE is:

Coroot's unauthenticated MCP OAuth dynamic client registration endpoint accepts any syntactically valid redirect URI without validation, allowing attackers to register clients pointing to attacker-controlled hosts. Attackers can send authorization URLs to signed-in users, capture their authorization codes upon consent approval, and exchange them for access tokens to hijack MCP sessions.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-79786 since 08/25/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/25/2026). MITRE ATT&CK project uses the attack technique T1204.001 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Coroot

Version

• 1.24.0
• 1.24.1
• 1.24.2
• 1.24.3
• 1.24.4
• 1.24.5

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