Vulnerability in Zcash Halo2_gadgets
CVE-2026-54496
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/incomp…
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:L.
Affected products
- Zcash Halo2_gadgets — versions < 0.5.0
- Zcash Librustzcash — versions < 0.28.0
- Zcash Orchard — versions < 0.14.0
- Zcash — versions < 6.20.0
- Zcashfoundation Zebra — versions < 5.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-54496?
- CVE-2026-54496 is a critical-severity vulnerability in Zcash Halo2_gadgets, classified under Insufficient Verification of Data Authenticity. CVSS score: 9.3/10. Published 2026-07-17.
- How severe is CVE-2026-54496?
- Critical severity. CVSS v3 base score is 9.3 out of 10.