🛡️ CVE-2023-44378
🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-191 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

gnark is a zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.9.0, for some in-circuit values, it is possible to construct two valid decomposition to bits. In addition to the canonical decomposition of `a`, for small values there exists a second decomposition for `a+r` (where `r` is the modulus the values are being reduced by). The second decomposition was possible due to overflowing the field where the values are defined. Upgrading to version 0.9.0 should fix the issue without needing to change the calls to value comparison methods.

Details

Severity High
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CWE CWE-191
Public Exploit ✅ No
Source NVD
Published 2023-10-04
Updated 2026-06-15
Modified 2023-11-08

Affected Packages

Software From version Fixed in
github.com/consensys/gnark
gnark 0.9.0

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