{"id":"CVE-2026-104425","revision":"d463c7db31834bbb976b189b34ee108f","records":[{"revision":"d463c7db31834bbb976b189b34ee108f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104425","aliases":[],"title":"Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions","description":"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.","state":0,"publishedAt":"2026-10-02T11:38:06.504+00:00","modifiedAt":"2026-10-02T15:35:22.404+00:00","affected":[{"ecosystem":"Vendor product","name":"zebra","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ZcashFoundation\",\n                    \"product\": \"zebra\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/zebrad\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"6.1.0\"\n                        },\n                        {\n                            \"version\": \"6.1.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-g7c4-2w6c-cr3r","https://www.vulncheck.com/advisories/zebra-before-6.1.0-batch-verification-poisoning-dos-via-unattributed-pushed-transactions"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104425","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104425","identifiers":["CVE-2026-104425"]},"retained":false,"historicalAffected":[]}],"coverage":[]}