CVE-2025-71433
Description
A flaw was found in Kaneo. An authenticated remote user who obtains valid workspace, project, or task identifiers can access and manipulate data across different workspaces due to missing authorization checks on API endpoints. An attacker can exploit this issue to view sensitive workspace contents and projects, as well as modify or delete tasks, labels, and comments without having the required membership permissions.
Statement
A flaw was found in Kaneo, an open-source project management application, where certain API routes fail to verify workspace membership. An authenticated remote attacker who obtains valid workspace, project, task, or label identifiers, for example from shared project links, can use the affected API endpoints to read projects, tasks, and workspace contents, modify or delete tasks, labels, and comments, and search other users' workspaces without having the required membership permissions. Red Hat rates this issue as Important (CVSS 7.5, CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) because exploitation requires an authenticated account and knowledge of non-guessable resource identifiers, which limits practical attack complexity relative to the unauthenticated exposure implied by the upstream record. No Red Hat products are listed as affected because Kaneo is an upstream community project that is not shipped in any Red Hat offering.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
Access control checks for specific user data or functionality can be bypassed.
Access Control
Technical Impact: Gain Privileges or Assume Identity
Horizontal escalation of privilege is possible (one user can view/modify information of another user).
Access Control
Technical Impact: Gain Privileges or Assume Identity
Vertical escalation of privilege is possible if the user-controlled key is actually a flag that indicates administrator status, allowing the attacker to gain administrative access.
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