CVE-2026-105628

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.

• CWE-918

• https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615
• https://github.com/makeplane/plane/pull/9163
• https://github.com/makeplane/plane/releases/tag/v1.4.0
• https://github.com/makeplane/plane/security/advisories/GHSA-cv9p-325g-wmv5
• https://github.com/makeplane/plane/security/advisories/GHSA-cv9p-325g-wmv5

Published

Oct 5, 2026

Last Modified

Oct 5, 2026

Status

Deferred

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