3xpyth0n ideon up to 0.9.3 HTTP privileges management

Summaryinfo

A vulnerability was found in 3xpyth0n ideon up to 0.9.3 and classified as problematic. The impacted element is an unknown function of the component HTTP Handler. Such manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2026-65965. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in 3xpyth0n ideon up to 0.9.3 and classified as problematic. Affected by this issue is an unknown code of the component HTTP Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is integrity, and availability. CVE summarizes:

ideon is a self-hosted visual workspace. Prior to version 0.9.4, several project mutation endpoints under /api/projects/[id]/* resolve the caller's project role but never enforce it, so a user who was granted only the read-only viewer role on a project can perform write operations on that project. The most severe is POST /api/projects/[id]/graph, which deletes every block and link in the project and re-inserts client-supplied ones. A viewer can silently rewrite or wipe the entire canvas of a project they were invited to read. The application clearly intends viewer to be read-only: the collaborators endpoint, the automation endpoints, and the realtime Yjs sync path all reject write attempts from viewers. These specific HTTP handlers simply omit the guard their siblings enforce. This issue has been patched in version 0.9.4.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-65965 since 07/23/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 0.9.4 eliminates this vulnerability.

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Productinfo

Vendor

• 3xpyth0n

Name

• ideon

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3

Website

• Product: https://github.com/3xpyth0n/ideon/

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