{"action":"Upgrade zebrad to 4.5.0 or later.","affected":[{"fixed":"4.5.0","introduced":"0"}],"component":"zebrad","cve_ids":["CVE-2026-52734"],"ecosystem":"crates.io","epss":0.00507,"exploited":false,"fixed_versions":["4.5.0"],"ghsa_id":"GHSA-65jj-fmw8-468q","id":"tcs_01M5KETFMN1PA5QB48C34660HF","modified_at":"2026-07-02T20:26:31.655480Z","published_at":"2026-07-02T20:12:35Z","references":["https://osv.dev/vulnerability/GHSA-65jj-fmw8-468q","https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-65jj-fmw8-468q","https://github.com/ZcashFoundation/zebra","https://github.com/ZcashFoundation/zebra/blob/d4cd662c716382f6397d2a730148025a1ca79fec/zebrad/src/components/mempool.rs#L663-L672","https://github.com/ZcashFoundation/zebra/blob/d4cd662c716382f6397d2a730148025a1ca79fec/zebrad/src/components/mempool/downloads.rs#L215-L228"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-65jj-fmw8-468q","url":"https://osv.dev/vulnerability/GHSA-65jj-fmw8-468q"}],"summary":"zebrad has unbounded memory leak in mempool download pipeline via timeout path cancel_handles retention"}