CVE-2024-45040: gnark is a fast zk-SNARK library that offers a high-level API to design circuits

Q: How do I fix CVE-2024-45040?

gnark-crypto: upgrade to 0.11.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-45040 being exploited?

CVE-2024-45040 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-45040 affect?

CVE-2024-45040 affects gnark-crypto. Severity is medium (CVSS 5.9). gnark is a fast zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.11.0, commitments to private witnesses in Groth16 as implemented break the zero-knowledge property. The vulnerability affects only Groth16

Q: How urgent is CVE-2024-45040?

Priority 35/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.9REMOTEUPGRADE

CVE-2024-45040 is a medium-severity flaw (CVSS 5.9) affecting gnark-crypto. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

gnark is a fast zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.11.0, commitments to private witnesses in Groth16 as implemented break the zero-knowledge property. The vulnerability affects only Groth16 proofs with commitments. Notably, PLONK proofs are not affected. The vulnerability affects the zero-knowledge property of the proofs - in case the witness (secret or internal) values are small, then the attacke

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-200
Published	2024-09-06
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: consensys

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-09-06 13:15 UTCPublished CVE record published
2026-06-17 07:53 UTCUpdated Record last modified

consensys gnark-crypto UPGRADE

Affected: < 0.11.0

Fixed in: 0.11.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gnark-crypto || rpm -q gnark-crypto || gnark-crypto --version

2. UPGRADE to 0.11.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gnark-crypto

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gnark-crypto

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-45040?

gnark-crypto: upgrade to 0.11.0. Exact commands for each OS are on this page.

Is CVE-2024-45040 being exploited?

CVE-2024-45040 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-45040 affect?

CVE-2024-45040 affects gnark-crypto. Severity is medium (CVSS 5.9). gnark is a fast zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.11.0, commitments to private witnesses in Groth16 as implemented break the zero-knowledge property. The vulnerability affects only Groth16

How urgent is CVE-2024-45040?

Priority 35/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-45039 MEDIUM 6.2 UPGRADE gnark is a fast zk-SNARK library that offers a high-level API to design circuits

References

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