CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad 5.0.0, halo2_gadgets 0.5.0, orchard 0.14.0, zcash_primitives 0.28.0, and zcashd 6.20.0, the variable-base scalar multiplication gadget in halo2_gadgets/src/ecc/chip/mul/incomplete.rs used assign_advice() for the base point without a copy constraint tying it to the actual base, allowing a malicious prover to produce a valid proof for an Orchard Action with an under-constrained base point and bypass the diversified-address-integrity check that binds pk_d, g_d, ivk, the nullifier (nf), and the spend validating key (ak) to the note being spent. This issue is fixed in zebrad 5.0.0, halo2_gadgets 0.5.0, orchard 0.14.0, zcash_primitives 0.28.0, and zcashd 6.20.0.
Засегнати продукти
- ZcashFoundation zebra: < 5.0.0
- zcash halo2_gadgets: < 0.5.0
- zcash orchard: < 0.14.0
- zcash librustzcash: < 0.28.0
- zcash zcash: < 6.20.0
Вид слабост
История
- 17 юли 2026 Публикувано
Други уязвимости в ZcashFoundation zebra
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-54496
- https://nvd.nist.gov/vuln/detail/CVE-2026-54496
- https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-ww9q-8r59-xv46
- https://github.com/ZcashFoundation/zebra/releases/tag/v5.0.0
- https://github.com/zcash/halo2/releases/tag/halo2_gadgets-0.5.0
- https://github.com/zcash/librustzcash/releases/tag/zcash_primitives-0.28.0
- https://github.com/zcash/orchard/releases/tag/0.14.0
- https://github.com/zcash/zcash/releases/tag/v6.20.0
- https://zfnd.org/zebra-4-5-3-and-5-0-0-emergency-soft-fork-and-nu6-2-activation