CVE-2026-52733

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{"affected": [{"affectedData": [{"product": "zebra", "vendor": "ZcashFoundation", "versions": [{"status": "affected", "version": "< 4.5.0"}]}, {"product": "zebra-state", "vendor": "ZcashFoundation", "versions": [{"status": "affected", "version": "< 7.0.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a natural or attacker-influenced chain fork can leave stale Sapling and Orchard note-commitment subtree roots in Zebra state. In zebra-state/src/service/non_finalized_state/chain.rs, Chain::pop_tip removed a reverted tip block but did not remove subtree entries whose end_height belonged to that block, unlike the cleanup performed by pop_root. When the winning fork later finalized, the abandoned branch's stale subtree data could be written to RocksDB and survive node restarts. The corrupted history can cause z_getsubtreesbyindex consumers such as lightwalletd and light wallets to receive incorrect subtree roots, producing wallet synchronization failures or incorrect wallet state and requiring a full state rebuild for recovery. This issue is fixed in version 4.5.0."}, {"lang": "es", "value": "ZEBRA es un nodo Zcash escrito completamente en Rust. Antes de la versi\u00f3n 4.5.0, una bifurcaci\u00f3n de cadena natural o influenciada por un atacante puede dejar ra\u00edces de sub\u00e1rbol de compromiso de notas Sapling y Orchard obsoletas en el estado de Zebra. En zebra-state/src/service/non_finalized_state/chain.rs, Chain::pop_tip elimin\u00f3 un bloque de punta revertido pero no elimin\u00f3 las entradas de sub\u00e1rbol cuyo end_height pertenec\u00eda a ese bloque, a diferencia de la limpieza realizada por pop_root. Cuando la bifurcaci\u00f3n ganadora se finaliz\u00f3 m\u00e1s tarde, los datos de sub\u00e1rbol obsoletos de la rama abandonada podr\u00edan escribirse en RocksDB y sobrevivir a los reinicios del nodo. El historial corrupto puede causar que los consumidores de z_getsubtreesbyindex, como lightwalletd y las carteras ligeras, reciban ra\u00edces de sub\u00e1rbol incorrectas, produciendo fallos de sincronizaci\u00f3n de la cartera o un estado de cartera incorrecto y requiriendo una reconstrucci\u00f3n completa del estado para la recuperaci\u00f3n. Este problema est\u00e1 solucionado en la versi\u00f3n 4.5.0."}], "id": "CVE-2026-52733", "lastModified": "2026-11-09T20:10:00.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-52733", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-19T15:20:08.584025Z", "version": "2.0.3"}}]}, "published": "2026-08-18T20:17:16.920", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/ZcashFoundation/zebra/commit/1440b43ca7df59aca948090d45117557b217a6cd"}, {"source": "security-advisories@github.com", "url": "https://github.com/ZcashFoundation/zebra/releases/tag/v4.5.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2gf8-q9rr-jq3h"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}, {"lang": "en", "value": "CWE-672"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.5.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "zebra", "source": "cna", "vendor": "ZcashFoundation"}, "product": "zebra", "vendor": "zcashfoundation"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.0.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "zebra-state", "source": "cna", "vendor": "ZcashFoundation"}, "product": "zebra-state", "vendor": "zcashfoundation"}], "created": "2026-08-18T21:30:04.791370+00:00", "updated": "2026-08-21T21:17:24.174535+00:00", "vendors": ["zcashfoundation", "zcashfoundation$PRODUCT$zebra", "zcashfoundation$PRODUCT$zebra-state"]}