CVE-2026-44900

HighCVSS 8.1/10Last modified Jul 24, 2026

Description

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.1, in SignedPublicKeysTrustValidatorImpl.isTrusted(), the ECDSA signature verification at line 45 discards the boolean return value of Signature.verify(). The method performs certificate chain validation, OCSP check, and signature algorithm setup, but never checks whether the signature actually matches. For any structurally valid signature, it returns true. This vulnerability is fixed in 1.2.1.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published: May 26, 2026
Last modified: Jul 24, 2026
NVD status: Deferred

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