Frappe HR (hrms) before 16.11.0 Missing Authorization via expire_allocation

Advisories

Frappe HR (hrms) before 16.11.0 Missing Authorization via expire_allocation

severity: medium
date: 10/11/2026
Affecting: hrms >= 0, < 16.11.0
CVE: CVE-2026-108733
CWE: CWE-862 Missing Authorization
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind03/frappe-hrms-expire-allocation-missing-authorization-20261010
https://github.com/frappe/hrms/blob/0a54d2c7b8b6043e2705b6f557b6ed65260670dd/hrms/hr/doctype/leave_ledger_entry/leave_ledger_entry.py#L199-L228
https://github.com/frappe/hrms/commit/6ab7a50347367413b78ad5bd5d9e4b8c6653c81f
hrms v16.11.0 Release Notes
https://github.com/frappe/hrms
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: Frappe HR (hrms) before 16.11.0, including all 14.x and 15.x releases through 15.64.3, contains a missing authorization vulnerability in the whitelisted expire_allocation method that allows authenticated users to expire any leave allocation. Attackers without HR roles can name another employee's Leave Allocation in a POST request to zero its allocated leaves and wipe that employee's remaining leave balance.

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