{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52733", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T14:00:43.572Z", "datePublished": "2026-08-18T19:24:44.005Z", "dateUpdated": "2026-08-18T19:24:44.005Z"}, "containers": {"cna": {"title": "ZEBRA: Persistent on-disk corruption of Sapling/Orchard subtree roots after chain fork via pop_tip", "problemTypes": [{"descriptions": [{"cweId": "CWE-459", "lang": "en", "description": "CWE-459: Incomplete Cleanup", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-672", "lang": "en", "description": "CWE-672: Operation on a Resource after Expiration or Release", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "references": [{"name": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2gf8-q9rr-jq3h", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2gf8-q9rr-jq3h"}, {"name": "https://github.com/ZcashFoundation/zebra/commit/1440b43ca7df59aca948090d45117557b217a6cd", "tags": ["x_refsource_MISC"], "url": "https://github.com/ZcashFoundation/zebra/commit/1440b43ca7df59aca948090d45117557b217a6cd"}, {"name": "https://github.com/ZcashFoundation/zebra/releases/tag/v4.5.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/ZcashFoundation/zebra/releases/tag/v4.5.0"}], "affected": [{"vendor": "ZcashFoundation", "product": "zebra", "versions": [{"version": "< 4.5.0", "status": "affected"}]}, {"vendor": "ZcashFoundation", "product": "zebra-state", "versions": [{"version": "< 7.0.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-18T19:24:44.005Z"}, "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."}], "source": {"advisory": "GHSA-2gf8-q9rr-jq3h", "discovery": "UNKNOWN"}}}}

{}

{"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."}], "id": "CVE-2026-52733", "lastModified": "2026-08-18T20:17:16.920", "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"}]}, "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": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}, {"lang": "en", "value": "CWE-672"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-08-18T21:30:04.791370+00:00", "updated": "2026-08-18T21:30:04.791376+00:00", "vendors": []}