-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

0xCERT Security Advisory 0xCERT-2026-0209
============================================================

Advisory-ID:  0xCERT-2026-0209
Severity:     Medium
Published:    2026-07-02T20:11:36.000Z
Updated:      2026-10-08T22:47:34.417Z
Chains:       n/a
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0209

Title: zebrad has persistent on-disk corruption of Sapling/Orchard subtree roots after chain fork via pop_tip

Summary
- -------
zebrad has persistent on-disk corruption of Sapling/Orchard subtree roots after chain fork via pop_tip. You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node participates in a network where chain forks occur (mainnet, testnet, or any network with multiple miners).

Details
- -------
Summary
You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node participates in a network where chain forks occur (mainnet, testnet, or any network with multiple miners).

Affected
- - zebra-state (rust) <= 6.0.0 — fixed in 7.0.0
- - zebrad (rust) <= 4.4.1 — fixed in 4.5.0

Severity
Medium, as rated by the upstream advisory.

Recommended actions
- - Upgrade zebra-state to 7.0.0 or later
- - Upgrade zebrad to 4.5.0 or later

Source & attribution
This 0xCERT advisory summarises GHSA-2gf8-q9rr-jq3h / CVE-2026-52733 from the GitHub Advisory Database, credited upstream to dingledropper, mpguerra, upbqdn: https://github.com/advisories/GHSA-2gf8-q9rr-jq3h. Details may change; refer to the original source for the authoritative record.

References
- ----------
- - https://github.com/advisories/GHSA-2gf8-q9rr-jq3h
- - CVE-2026-52733
- - https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2gf8-q9rr-jq3h

Verify with the 0xCERT OpenPGP key: https://www.0xcert.com/pgp.asc
Fingerprint: 5F94 3ED1 1E50 CF31 2128  C493 CCC7 D9EC 9415 723D

-----BEGIN PGP SIGNATURE-----

wrsEARYKAG0FgmrIRr0JEDe9Tbcr+ZxrRRQAAAAAABwAIHNhbHRAbm90YXRp
b25zLm9wZW5wZ3Bqcy5vcme313KBTsUJdYyd3nfIhO8adEsX99N5LVZu/QbE
Qdh9wxYhBGCkkFZbJcT5QWu27ze9Tbcr+ZxrAAAnWwD+LkHF9EalYJzxLdZg
hFAWIQRaH3BliOli/RPkgCPBDJgA/irTYY18a1/6AtfsYb0fAXhaPeRXHdOO
RMpWY+AGDqsA
=6iSa
-----END PGP SIGNATURE-----