{"action":"Upgrade zebrad to 4.5.0 or later.","affected":[{"fixed":"4.5.0","introduced":"0"}],"component":"zebrad","cve_ids":["CVE-2026-52739"],"ecosystem":"crates.io","epss":0.00515,"exploited":false,"fixed_versions":["4.5.0"],"ghsa_id":"GHSA-hhm7-qrv5-h4r6","id":"tcs_01M5KF0JA3JD0D8ZRKZDJ2AHR8","modified_at":"2026-07-02T20:11:29.946365Z","published_at":"2026-07-02T19:46:35Z","references":["https://osv.dev/vulnerability/GHSA-hhm7-qrv5-h4r6","https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-hhm7-qrv5-h4r6","https://github.com/ZcashFoundation/zebra","https://github.com/ZcashFoundation/zebra/blob/d4cd662c716382f6397d2a730148025a1ca79fec/Cargo.toml#L304-L305","https://github.com/ZcashFoundation/zebra/blob/d4cd662c716382f6397d2a730148025a1ca79fec/zebra-consensus/src/transaction.rs#L521-L526","https://github.com/ZcashFoundation/zebra/blob/d4cd662c716382f6397d2a730148025a1ca79fec/zebra-state/src/service/non_finalized_state/chain.rs#L1608-L1628"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-hhm7-qrv5-h4r6#crates.io/zebrad","url":"https://osv.dev/vulnerability/GHSA-hhm7-qrv5-h4r6"}],"summary":"Zebra: Repeated Non-Finalized Shielded Transaction Aborts Zebra Before Duplicate-Nullifier Rejection"}