VULNERABILITY INTELLIGENCE

CVE-2026-44900

CVSS score8.1 HIGH
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-05-26
Last modified2026-07-24
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-295

Primary references