CVE-2026-46669 `openvm-pairing` pairing check missing proper subfield check on scaling factor
Missing subfield validation in pairing checks allows incorrect results, compromising the integrity of zero-knowledge proofs in OpenVM.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46669?
CVE-2026-46669 is a high-severity vulnerability in openvm-org openvm, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-20
Which versions are affected by CVE-2026-46669?
It affects 1 product.
Products include Openvm Openvm.
How do I fix CVE-2026-46669?
No fix has been published for CVE-2026-46669 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-46669 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46669 exists.
Sources
Also known as GHSA-76mq-v757-53gr.