{"items":[{"id":"NVI-00018591","kind":"vulnerability","title":"epa4all-client has a VAU Signature bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-g8r3-5hwf-qp96","CVE-2026-44900"],"plain_summary":"GitHub lists this reviewed advisory for com.oviva.telematik:epa4all-client. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-411d49212a79ca94f6be41bb88c7fbab"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-08T23:35:01.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-411d49212a79ca94f6be41bb88c7fbab"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-411d49212a79ca94f6be41bb88c7fbab","url":"https://github.com/advisories/GHSA-g8r3-5hwf-qp96","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-g8r3-5hwf-qp96","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:50:36.189Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-411d49212a79ca94f6be41bb88c7fbab"],"technology":"com.oviva.telematik:epa4all-client","known_exclusions":[],"conditions_summary":"### Impact\nIn 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.\n\n### Patches\nPatched in #34.\n\n### Workarounds\nNone.\n\n### Resources\n- MS-OVIVA-EPA4ALL-d76aec\n\n### Credits\n\nMachine Spirits (contact@machinespirits.de)\n- Dr. rer. nat. Simon Weber\n- Dipl.-Inf. Volker Schönefeld\n- Chiara Fliegner","public_affected_ranges":["<= 1.2.0"]}],"null_published_at":"2026-11-07T07:07:39.859Z","source_updated_at":"2026-06-08T23:35:01.000Z","source_disclosed_at":"2026-05-08T23:47:12.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-07T00:50:36.189Z"}],"next_cursor":null,"snapshot_revision":"42594"}