What’s Vulnerable › Vulnerabilities

CVE-2026-93736: Mealie before 3.21.0 Information Disclosure via Ratings Endpoint

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-22
• Weakness: CWE-639

Description

Mealie before 3.21.0 fails to validate user ownership in the ratings and favorites endpoints, allowing authenticated attackers to read any user's recipe ratings and favorites by specifying arbitrary user IDs in the URL path. Attackers can access private recipe identifiers, rating values, and favorite flags belonging to other users across different groups or households.

Affected products

• mealie-recipes mealie: before 3.21.0 — fixed in 3.21.0

How to fix

Upgrade to a fixed version: mealie-recipes mealie 3.21.0. Check the vendor advisory for mitigations.

References

• https://github.com/mealie-recipes/mealie
• https://github.com/mealie-recipes/mealie/blob/v3.20.1/mealie/repos/repository_users.py#L82-L88
• https://github.com/mealie-recipes/mealie/blob/v3.20.1/mealie/routes/users/ratings.py#L44-L52
• https://github.com/mealie-recipes/mealie/commit/6889101a760a457019276c10514e630660b3ed28
• https://github.com/mealie-recipes/mealie/issues/7909
• https://github.com/mealie-recipes/mealie/pull/7903
• https://github.com/mealie-recipes/mealie/releases/tag/v3.21.0
• https://www.vulncheck.com/advisories/mealie-before-3.21.0-information-disclosure-via-ratings-endpoint
• https://github.com/mealie-recipes/mealie/issues/7909

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