CVE-2026-46669
Received Received - Intake
Pairing Check Bypass in OpenVM Guest Library

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: GitHub, Inc.

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.
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Meta Information
Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-11
AI Q&A
2026-06-11
EPSS Evaluated
N/A
NVD
CVE-2026-46669
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openvm openvm-pairing to 1.6.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability exists in the openvm-pairing guest library of the OpenVM zkVM framework prior to version 1.6.0. Specifically, the try_honest_pairing_check function invokes a mathematical theorem (Theorem 3 from a referenced paper) but fails to verify that the scaling factor 's' is within a proper subfield of Fp12. This lack of validation can lead to incorrect results during the pairing check process.

Impact Analysis

Because the vulnerability allows incorrect results in the pairing check, it can undermine the integrity and correctness of cryptographic operations relying on this function. This could potentially lead to security weaknesses in systems using the affected OpenVM versions, such as accepting invalid proofs or signatures, which may compromise trustworthiness or security guarantees.

Mitigation Strategies

The vulnerability has been patched in openvm-pairing version 1.6.0. Immediate mitigation involves upgrading the openvm-pairing guest library to version 1.6.0 or later.

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