{"schema":"threatline.record/2","record":{"id":"CVE-2026-104425","aliases":["GHSA-g7c4-2w6c-cr3r"],"summary":"Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions","details":"ZcashFoundation Zebra before 6.1.0 contains a resource exhaustion vulnerability that allows unauthenticated peers to degrade block processing by pushing transactions with invalid Orchard proofs without being misbehavior-scored. Attackers can repeatedly push invalid proofs into the shared halo2 batch verifier, forcing honest block proofs onto the slow individual-verification path and slowing block processing roughly sevenfold.","categories":["Unclassified"],"product":"zebra","vendor":"ZcashFoundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104425","source_modified_at":"2026-10-02T15:35:22.404Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"zebra","vendor":"ZcashFoundation","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"6.1.0"},{"version":"6.1.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104425","source_modified_at":"2026-10-02T15:35:22.404Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"zebra","ecosystem":null},"version":"6.1.0","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00304,"percentile":0.22039,"score_date":"2026-10-23"},"published_at":"2026-10-02T11:38:06.504Z","modified_at":"2026-10-02T15:35:22.404Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104425","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-02T15:35:22.404Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104425","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-g7c4-2w6c-cr3r","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/zebra-before-6.1.0-batch-verification-poisoning-dos-via-unattributed-pushed-transactions","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-02T15:34:04.808428Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-02T15:35:22.404Z","content_hash":"b17fc66f92e45193c607c40e4b2f731ee786fca7c5f5b86c001756bda3c9781a"}}