makeplane Plane up to 1.3.x OAuth Avatar Synchronization {asset_id} avatar_url server-side request forgery

Summaryinfo

A vulnerability was found in makeplane Plane up to 1.3.x and classified as critical. This affects an unknown part of the file /api/assets/v2/static/{asset_id}/ of the component OAuth Avatar Synchronization. Such manipulation of the argument avatar_url leads to server-side request forgery. This vulnerability is referenced as CVE-2026-105628. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in makeplane Plane up to 1.3.x and classified as critical. Affected by this issue is an unknown code of the file /api/assets/v2/static/{asset_id}/ of the component OAuth Avatar Synchronization. The manipulation of the argument avatar_url 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, integrity, and availability. CVE summarizes:

Plane is an open-source project management tool. Prior to 1.4.0, Plane's OAuth avatar synchronization flow fetches avatar_url from provider user data through a server-side HTTP request without internal IP validation and follows redirects by default. An attacker can provide an avatar URL that redirects to an internal-only resource, such as a metadata endpoint, and Plane uploads the fetched response as a user avatar file. The object is then exposed through /api/assets/v2/static/{asset_id}/, allowing exfiltration of internally fetched content. This issue is fixed in 1.4.0.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-105628 since 10/05/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 1.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-92540). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• makeplane

Name

• Plane

Version

• 1.0
• 1.1
• 1.2
• 1.3

Website

• Product: https://github.com/makeplane/plane/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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