CVE-2026-101033

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-27. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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.

CVSS v3
4.3
EG Score
4.3MEDIUMhigh confidence
EG Risk
19
EG Risk 19/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.2%
EPSS %ILE
11th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 27, 2026

Last Modified

September 30, 2026

Advisory Details (7)

Auto-updated Sep 27, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

KitchenOwl through 0.7.10 IDOR via unchecked category ID | Advisories | VulnCheck

https://www.vulncheck.com/advisories/kitchenowl-through-0.7.10-idor-via-unchecked-category-id
generic

GitHub - TomBursch/kitchenowl: KitchenOwl is a self-hosted grocery list and recipe manager. The backend is made with Flask and the frontend with Flutter. Easily add items to your shopping list before you go shopping. You can also create recipes and add items based on what you want to cook. · GitHub

https://github.com/TomBursch/kitchenowl
generic

kitchenowl/backend/app/controller/item/item_controller.py at 09aaf5fbd2343fcc10b12e906c63c3764dd38919 · TomBursch/kitchenowl · GitHub

https://github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/backend/app/controller/item/item_controller.py#L86-L88
generic

kitchenowl/backend/app/controller/expense/expense_controller.py at 09aaf5fbd2343fcc10b12e906c63c3764dd38919 · TomBursch/kitchenowl · GitHub

https://github.com/TomBursch/kitchenowl/blob/09aaf5fbd2343fcc10b12e906c63c3764dd38919/backend/app/controller/expense/expense_controller.py#L115-L118
github_commit

commit c15f6cb21a98 (TomBursch/kitchenowl)

Fix landed in TomBursch/kitchenowl commit c15f6cb21a98 — awaiting tagged release

https://github.com/TomBursch/kitchenowl/commit/c15f6cb21a98d5eb70746bee6b63773a6d6a6251
github_pr

Fix cross-household IDOR via unchecked category id on expense/item

Fix merged in TomBursch/kitchenowl PR #1155 on 2026-09-26 — awaiting tagged release

https://github.com/TomBursch/kitchenowl/pull/1155
generic

Cross-Household IDOR Discloses Private Expense and Item Category Names via Foreign-Key Assignment · Issue #1154 · TomBursch/kitchenowl · GitHub

https://github.com/TomBursch/kitchenowl/issues/1154

Vendor Advisories for CVE-2026-101033(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-03 15:59 UTCEG score recompute
  2. 2026-10-03 15:59 UTCGHSA enrichment
  3. 2026-10-03 14:25 UTCEPSS rescore
  4. 2026-10-02 16:29 UTCEG score recompute
  5. 2026-10-02 16:29 UTCGHSA enrichment
  6. 2026-10-01 19:49 UTCEPSS rescore
  7. 2026-10-01 17:00 UTCGHSA enrichment
  8. 2026-09-30 17:27 UTCEG score recompute
  9. 2026-09-30 17:27 UTCGHSA enrichment
  10. 2026-09-30 17:01 UTCEG score recompute
  11. 2026-09-30 17:01 UTCGHSA enrichment
  12. 2026-09-30 15:02 UTCEPSS rescore
  13. 2026-09-29 23:47 UTCEG score recompute
  14. 2026-09-29 23:47 UTCGHSA enrichment
  15. 2026-09-29 15:20 UTCEPSS rescore
  16. 2026-09-28 21:13 UTCEG score recompute
  17. 2026-09-28 21:13 UTCGHSA enrichment
  18. 2026-09-28 13:50 UTCEPSS rescore
  19. 2026-09-28 13:47 UTCEG score recompute
  20. 2026-09-28 13:47 UTCGHSA enrichment
  21. 2026-09-27 14:18 UTCEG score recompute
  22. 2026-09-27 13:26 UTCEG score recompute
  23. 2026-09-27 13:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-101033?
CVE-2026-101033 is a medium vulnerability published on September 27, 2026. 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.
When was CVE-2026-101033 disclosed?
CVE-2026-101033 was first published on September 27, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-101033 actively exploited?
CVE-2026-101033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (11th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-101033?
CVE-2026-101033 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-101033?
An upstream fix for CVE-2026-101033 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-101033 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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