VULNERABILITY INTELLIGENCE

CVE-2021-38194

CVSS score9.8 CRITICAL

EPSS probability1.27%

CISA KEVNot currently listed

Published2021-08-08

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in the ark-r1cs-std crate before 0.3.1 for Rust. It does not enforce any constraints in the FieldVar::mul_by_inverse method. Thus, a prover can produce a proof that is unsound but is nonetheless verified.

Weakness classification

nvd@nist.gov: NVD-CWE-noinfo

Primary references

cve@mitre.org — Third Party Advisory
cve@mitre.org — Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Third Party Advisory