Auth bypass in Oss-Apps Splitpro
CVE-2026-122324
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/oss-apps/split-pro (product)
- github.com/oss-apps/split-pro/blob/v2.1.6/src/server/api/routers/expense.ts (technical-description)
- github.com/oss-apps/split-pro/commit/1a0f8f498098e4b90bd73e7b710860e1ea98cc49 (patch)
- github.com/oss-apps/split-pro/issues/786 (issue-tracking)
- hackmd.io/@hieund/splitpro-trpc-idor-user-expense-disclosure (third-party-advisory)
- www.vulncheck.com/advisories/splitpro-through-2.1.6-authorization-bypass-via-ex… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-122324?
- CVE-2026-122324 is a low-severity vulnerability in Oss-Apps Splitpro, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 3.1/10. Published 2026-11-05.
- How severe is CVE-2026-122324?
- Low severity. CVSS v3 base score is 3.1 out of 10.