---
id: CVE-2026-122324
title: SplitPro through 2.1.6 Authorization Bypass via expense.getExpenseDetails
summary: >-
  SplitPro through 2.1.6 contains an authorization bypass vulnerability that
  allows authenticated users to read other users' expenses by supplying
  arbitrary expenseId values to expense.getExpenseDetails. Attackers who obtain
  an expense UUI…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: oss-apps
product: SplitPro
affected:
  - SplitPro <= 2.1.6
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T15:11:43.503Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-122324'
references:
  - url: 'https://github.com/oss-apps/split-pro/issues/786'
  - url: >-
      https://github.com/oss-apps/split-pro/blob/v2.1.6/src/server/api/routers/expense.ts#L351-L424
  - url: >-
      https://github.com/oss-apps/split-pro/commit/1a0f8f498098e4b90bd73e7b710860e1ea98cc49
  - url: 'https://hackmd.io/@hieund/splitpro-trpc-idor-user-expense-disclosure'
  - url: 'https://github.com/oss-apps/split-pro'
  - url: >-
      https://www.vulncheck.com/advisories/splitpro-through-2.1.6-authorization-bypass-via-expense-getexpensedetails
    label: >-
      VulnCheck Advisory: SplitPro through 2.1.6 Authorization Bypass via
      expense.getExpenseDetails
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.890Z'
epss: 0.00223
epssPercentile: 0.13005
---

## Overview

SplitPro through 2.1.6 contains an authorization bypass vulnerability that allows authenticated users to read other users' expenses by supplying arbitrary expenseId values to expense.getExpenseDetails. Attackers who obtain an expense UUID, such as removed former participants, can retrieve expense notes, recurrence schedules, and full user rows of participants and group members.

## Affected

- `SplitPro <= 2.1.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.