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Vulnerability record · CVE-2026-63104 · published 22 September 2026

CVE-2026-63104: Missing authorization vulnerability

Kaneo versions 2.3.12 before 2.12.2 contain a missing authorization vulnerability that allows authenticated workspace members with viewer or member roles to delete and modify tasks beyond their assigned permissions by exploiting the bulk task endpoint that omits workspace permission checks. Attackers can send requests to the PATCH /api/task/bulk endpoint, which verifies only workspace membership without calling the role-based permission check enforced on all other task endpoints, to permanently delete all tasks or modify task status, priority, assignee, due date, and labels in a workspace.

7.2 CVSS 4.0 High EPSS 0.49% · top 60.5% CWE-862 · Missing authorization Deferred
7.2CVSS 4.0 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
22 Sep 2026Last modified by NVD

Description

Kaneo versions 2.3.12 before 2.12.2 contain a missing authorization vulnerability that allows authenticated workspace members with viewer or member roles to delete and modify tasks beyond their assigned permissions by exploiting the bulk task endpoint that omits workspace permission checks. Attackers can send requests to the PATCH /api/task/bulk endpoint, which verifies only workspace membership without calling the role-based permission check enforced on all other task endpoints, to permanently delete all tasks or modify task status, priority, assignee, due date, and labels in a workspace.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/usekaneo/kaneo/releases/tag/v2.12.2
https://github.com/usekaneo/kaneo/security/advisories/GHSA-gx46-mfgj-vm86
https://www.vulncheck.com/advisories/kaneo-missing-authorization-via-bulk-task-endpoint
https://github.com/usekaneo/kaneo/security/advisories/GHSA-gx46-mfgj-vm86

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Source: NIST National Vulnerability Database (record CVE-2026-63104), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.