Vulnerability · Published Nov 5, 2026 · Assigned by VulnCheck

CVE-2026-122317SplitPro through 2.1.6 Authorization Bypass via user.getUserDetails tRPC Query

Medium 4.3

In plain English

A medium-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 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 85.6% 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 retrieve any account's details by supplying arbitrary userId values to user.getUserDetails. Attackers can iterate sequential integer user ids to harvest every user's email, name, avatar, currency, and bankingId and obapiProviderId open-banking identifiers.

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:L/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/user.ts#L202-L212 technical-description
https://github.com/oss-apps/split-pro/blob/v2.1.6/prisma/schema.prisma#L41-L51 technical-description
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 user.getUserDetails tRPC Query third-party-advisory