Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M

CVE-2026-46669`openvm-pairing` pairing check missing proper subfield check on scaling factor

High 8.7

In plain English

A high-severity improper input validation in openvm from openvm-org. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.2%top 86.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
openvm-org	openvm	< 1.6.0

Weakness: CWE-20 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/openvm-org/openvm/security/advisories/GHSA-76mq-v757-53gr x_refsource_CONFIRM
https://github.com/openvm-org/openvm/releases/tag/v1.6.0 x_refsource_MISC