Is CVE-2026-28503 in the CISA KEV catalog?

No. CVE-2026-28503 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-28503?

CVE-2026-28503 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-28503?

CVE-2026-28503 has an EPSS score of 0.30% (22th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-28503?

Upgrade recipes to 2.6.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-28503

MEDIUM

6.5

CVSS v3

NVD

Description

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. In versions prior to 2.6.0, the `SyncViewSet.query_synced_folder()` action in `cookbook/views/api.py` (line 903) fetches a Sync object using `get_object_or_404(Sync, pk=pk)` without including `space=request.space` in the filter. This allows an admin user in Space A to trigger sync operations (Dropbox/Nextcloud/Local import) on Sync configurations belonging to Space B, and view the resulting sync logs. Version 2.6.0 patches the issue.

CWE-639Authorization Bypass Through User-Controlled Key

How to fix

Remediation Available

recipesNVD

Affected:< 2.6.0Fixed in:2.6.0CVE-2026-28503derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Vendor Advisory1

github.com

Release Notes1

github.com

Related Vulnerabilities

Other CWE-639 (Authorization Bypass Through User-Controlled Key) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-6875	Critical	9.8	90%	-	-
CVE-2024-46982	High	7.5	61%	-	Fix
CVE-2021-45428	Critical	9.8	57%	-	-
CVE-2019-17382	Critical	9.1	54%	-	Fix
CVE-2019-13360	Critical	9.8	24%	-	-
CVE-2023-48783	Medium	5.4	22%	-	Fix

Embed a live status badge for CVE-2026-28503

Markdown

[![CVE-2026-28503](https://tridentstack.com/cve/badge/CVE-2026-28503.svg)](https://tridentstack.com/cve/CVE-2026-28503)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-28503"><img src="https://tridentstack.com/cve/badge/CVE-2026-28503.svg" alt="CVE-2026-28503"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-30.