CVE-2026-46669

`openvm-pairing` pairing check missing proper subfield check on scaling factor

HIGH
7.5
CVSS Score
Published: June 10, 2026 at 08:09 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
2 products affected across 2 vendorsOpenvmOpenvm

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.6.0
Affected range stops below 1.6.0, so it looks safe — our inference, not a vendor statement
v < 1.6.0
Affected range stops below 1.6.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/openvm-org/openvm/security/advisories/GHSA-76mq-v757-53gr
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/openvm-org/openvm/releases/tag/v1.6.0

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo

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