CVE-2026-46669: OpenVM is a performant and modular zkVM framework built for customization and extensibility

Q: How do I fix CVE-2026-46669?

openvm: upgrade to 1.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-46669 being exploited?

CVE-2026-46669 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-2026-46669 affect?

CVE-2026-46669 affects openvm. Severity is high (CVSS 7.5). OpenVM is a performant and modular zkVM framework built for customization and extensibility. Prior to version 1.6.0, the openvm-pairing guest library's try_honest_pairing_check function invokes Theorem 3 of https://eprint.iacr.org/2024/640.

Q: How urgent is CVE-2026-46669?

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

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2026-46669 is a high-severity flaw (CVSS 7.5) affecting openvm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenVM is a performant and modular zkVM framework built for customization and extensibility. Prior to version 1.6.0, the openvm-pairing guest library's try_honest_pairing_check function invokes Theorem 3 of https://eprint.iacr.org/2024/640.pdf but does not check that the scaling factor s is in a proper subfield of Fp12. This allows incorrect results to the pairing check. This issue has been patched in version 1.6.0.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-06-10
Last modified	2026-07-23

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

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-10 22:17 UTCPublished CVE record published
2026-07-23 09:10 UTCUpdated Record last modified

openvm openvm UPGRADE

Affected: < 1.6.0

Fixed in: 1.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy openvm || rpm -q openvm || openvm --version

2. UPGRADE to 1.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openvm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openvm

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-2026-46669?

openvm: upgrade to 1.6.0. Exact commands for each OS are on this page.

Is CVE-2026-46669 being exploited?

CVE-2026-46669 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-2026-46669 affect?

CVE-2026-46669 affects openvm. Severity is high (CVSS 7.5). OpenVM is a performant and modular zkVM framework built for customization and extensibility. Prior to version 1.6.0, the openvm-pairing guest library's try_honest_pairing_check function invokes Theorem 3 of https://eprint.iacr.org/2024/640.

How urgent is CVE-2026-46669?

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

References

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