Auth bypass in Tombursch Kitchenowl
CVE-2026-101033
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/TomBursch/kitchenowl/issues/1154 (issue-tracking)
- github.com/TomBursch/kitchenowl/pull/1155 (issue-tracking, patch)
- github.com/TomBursch/kitchenowl/commit/c15f6cb21a98d5eb70746bee6b63773a6d6a6251 (patch)
- github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/b… (technical-description)
- github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/b… (technical-description)
- github.com/TomBursch/kitchenowl (product)
- www.vulncheck.com/advisories/kitchenowl-through-0.7.10-idor-via-unchecked-categ… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-101033?
- CVE-2026-101033 is a medium-severity vulnerability in Tombursch Kitchenowl, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-27.
- How severe is CVE-2026-101033?
- Medium severity. CVSS v3 base score is 4.3 out of 10.