What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-27 · updated 2026-09-30
• Weakness: CWE-639

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.

Affected products

• TomBursch kitchenowl: through 0.7.10

References

• https://github.com/TomBursch/kitchenowl
• 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/commit/c15f6cb21a98d5eb70746bee6b63773a6d6a6251
• https://github.com/TomBursch/kitchenowl/issues/1154
• https://github.com/TomBursch/kitchenowl/pull/1155
• https://www.vulncheck.com/advisories/kitchenowl-through-0.7.10-idor-via-unchecked-category-id

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