Vulnerability · Published May 26, 2026 · Assigned by GitHub_M

CVE-2026-47672epa4all-client: Unauthenticated REST API for Patient Record Writes

Medium 6.5

In plain English

A medium-severity missing authentication in epa4all-client from oviva-ag. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 94.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. In 1.2.4 and earlier, any network-reachable caller can write arbitrary documents to any patient's electronic health record accessible by the institution's SMC-B card. In a misconfigured deployment (e.g., following the production Docker example in the README), this is exploitable from the local network without credentials.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	com.oviva.telematik:epa4all-rest-service	no fix listed	GHSA-c82x-f4xr-qv33

Affected products (as reported)

Vendor	Product	Versions
oviva-ag	epa4all-client	<= 1.2.4

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

References

https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-c82x-f4xr-qv33 x_refsource_CONFIRM
https://github.com/oviva-ag/epa4all-client/pull/43 x_refsource_MISC