CVE-2026-52733
- Source
- https://cve.org/CVERecord?id=CVE-2026-52733
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52733.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-52733
- Aliases
- Published
- 2026-08-18T19:24:44Z
- Modified
- 2026-09-11T03:30:14Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
- Summary
- ZEBRA: Persistent on-disk corruption of Sapling/Orchard subtree roots after chain fork via pop_tip
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-459", "CWE-672" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52733.json", "unresolved_ranges": [ { "extracted_events": [ { "fixed": "7.0.0" } ], "source": "AFFECTED_FIELD" } ] }- References
-
- https://github.com/ZcashFoundation/zebra/releases/tag/v4.5.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52733.json
- https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2gf8-q9rr-jq3h
- https://nvd.nist.gov/vuln/detail/CVE-2026-52733
- https://github.com/ZcashFoundation/zebra/commit/1440b43ca7df59aca948090d45117557b217a6cd