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.
CVE-2023-44378
This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 13.1%
- KEV
- Not listed
Published
October 9, 2023
Last Modified
June 17, 2026
References (6)
- security-advisories@githubhttps://github.com/Consensys/gnark/commit/59a4087261a6c73f13e80d695c17b398c3d0934f
- security-advisories@githubhttps://github.com/Consensys/gnark/security/advisories/GHSA-498w-5j49-vqjg
- security-advisories@githubhttps://github.com/zkopru-network/zkopru/issues/116
- af854a3a-2127-422b-91ae-364da2661108https://github.com/Consensys/gnark/commit/59a4087261a6c73f13e80d695c17b398c3d0934f
- af854a3a-2127-422b-91ae-364da2661108https://github.com/Consensys/gnark/security/advisories/GHSA-498w-5j49-vqjg
- af854a3a-2127-422b-91ae-364da2661108https://github.com/zkopru-network/zkopru/issues/116
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/consensys/gnark | — | 0.9.0 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 50× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 109 total refreshes for this CVE.
- 2026-07-23 02:27 UTCEG score recompute
- 2026-07-22 23:13 UTCEG score recompute▼ 1.60
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- 2026-06-24 06:24 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
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Related CVEs(same CWE)
Same CWE
10 shownCWE-191 · CWE-697
Frequently asked(5)
What is CVE-2023-44378?
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What is the CVSS score of CVE-2023-44378?
How do I remediate CVE-2023-44378?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-44378
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