Vulnerability · Published Oct 15, 2026 · Assigned by VulnCheck

CVE-2026-111312OpenHealth through 0.2.0 Missing Authentication via /api/health-data/[id] Route

High 7.7

In plain English

A high-severity missing authentication in OpenHealth from OpenHealthForAll. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.6%top 51.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

OpenHealth through 0.2.0 contains a missing authentication and authorization vulnerability in the /api/health-data/[id] GET, PATCH and DELETE handlers that query records by id without session or authorId checks. Unauthenticated attackers who know a HealthData record id can read another user's medical record data and file metadata, overwrite it with arbitrary JSON, or delete it.

Affected products (as reported)

Vendor	Product	Versions
OpenHealthForAll	OpenHealth	0 – through 0.2.0

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

References

https://hackmd.io/@hieuPenguinnn/open-health-health-data-id-missing-auth-idor third-party-advisory
https://github.com/OpenHealthForAll/open-health/blob/v0.2.0/src/app/api/health-data/%5Bid%5D/route.ts#L13-L43 technical-description
https://github.com/OpenHealthForAll/open-health/blob/v0.2.0/src/middleware.ts#L20 technical-description
https://github.com/OpenHealthForAll/open-health product
VulnCheck Advisory: OpenHealth through 0.2.0 Missing Authentication via /api/health-data/[id] Route third-party-advisory