{"id":"CVE-2026-104432","revision":"316321036dbe4eeb941df2e67991f3f9","records":[{"revision":"316321036dbe4eeb941df2e67991f3f9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104432","aliases":[],"title":"Zebra before 6.3.0 False Readiness via Discarded One-Hash FindBlocks Response","description":"Zebra before 6.3.0 contains an improper exceptional condition check in ChainSync::obtain_tips that discards valid one-hash FindBlocks responses, falsely reporting close-to-tip status. Peers returning only the next block hash cause a zero-length sync sample, making the /ready endpoint return 200 OK while the node remains behind the tip.","state":0,"publishedAt":"2026-10-02T11:38:11.214+00:00","modifiedAt":"2026-10-06T02:41:48.408+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\": \"6.3.0\"\n                        },\n                        {\n                            \"version\": \"6.3.0\",\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-h8m8-844p-v3m9","https://www.vulncheck.com/advisories/zebra-before-6.3.0-false-readiness-via-discarded-one-hash-findblocks-response"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104432","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104432","identifiers":["CVE-2026-104432"]},"retained":false,"historicalAffected":[]}],"coverage":[]}