Vulnerability · Published Nov 5, 2026 · Assigned by VulnCheck

CVE-2026-122324SplitPro through 2.1.6 Authorization Bypass via expense.getExpenseDetails

Low 3.1

In plain English

A low-severity authorization bypass via user-controlled key in SplitPro from oss-apps. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)3.1Low

Exploit odds (30 days)0.2%top 87.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
oss-apps	SplitPro	0 – through 2.1.6

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/oss-apps/split-pro/issues/786 issue-tracking
https://github.com/oss-apps/split-pro/blob/v2.1.6/src/server/api/routers/expense.ts#L351-L424 technical-description
https://github.com/oss-apps/split-pro/commit/1a0f8f498098e4b90bd73e7b710860e1ea98cc49 patch
https://hackmd.io/@hieund/splitpro-trpc-idor-user-expense-disclosure third-party-advisory
https://github.com/oss-apps/split-pro product
VulnCheck Advisory: SplitPro through 2.1.6 Authorization Bypass via expense.getExpenseDetails third-party-advisory