CVE-2026-62333
— UNSCOREDpublic exploit availablePublished 2026-10-30 · Updated 2026-10-30
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
OpenVM is a performant and modular zkVM framework built for customization and extensibility. Before 1.7.0 in the 1.x line and in affected 2.0 and 2.1 prereleases, `MemoryMerkleAir` does not forbid Merkle expansion rows at `parent_height` = 0 or below while `expand_direction` != 0. A malicious prover can fabricate a subtree below a memory leaf and swap digests inside that subtree to change the committed memory root without a corresponding memory operation. The fraudulent rows still balance against the Merkle and compression buses and require no memory-bus operation for the changed leaf. Because the memory Merkle root binds VM memory state across continuation segment boundaries, this affects the soundness of OpenVM proofs using persistent memory. This issue is fixed in versions 1.7.0, 2.0.0-rc.3 and 2.1.0-preview.
Weaknesses
CWE-20
Public exploit & PoC references
- https://github.com/openvm-org/openvm/blob/v2.0.0-alpha/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/blob/v2.0.0-beta.2/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/blob/v2.1.0-dev.0/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/commit/bb123f6073691bd2b794171c594264c77e45c376
- https://github.com/openvm-org/openvm/pull/148
- https://github.com/openvm-org/openvm/releases/tag/v1.7.0
- https://github.com/openvm-org/openvm/releases/tag/v2.0.0-rc.3
- https://github.com/openvm-org/openvm/releases/tag/v2.1.0-preview
- https://github.com/openvm-org/openvm/security/advisories/GHSA-396x-v8w4-9x82
All references
- https://github.com/openvm-org/openvm/blob/v2.0.0-alpha/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/blob/v2.0.0-beta.2/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/blob/v2.1.0-dev.0/crates/vm/src/system/memory/merkle/air.rs
- https://github.com/openvm-org/openvm/commit/bb123f6073691bd2b794171c594264c77e45c376
- https://github.com/openvm-org/openvm/pull/148
- https://github.com/openvm-org/openvm/releases/tag/v1.7.0
- https://github.com/openvm-org/openvm/releases/tag/v2.0.0-rc.3
- https://github.com/openvm-org/openvm/releases/tag/v2.1.0-preview
- https://github.com/openvm-org/openvm/security/advisories/GHSA-396x-v8w4-9x82
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- LOWCVE-2020-37289PoC
- UNSCOREDCVE-2023-5649
- MEDIUMCVE-2024-6423
- MEDIUMCVE-2025-31980
- MEDIUMCVE-2025-32000
- CRITICALCVE-2025-71383
- HIGHCVE-2026-100113
- HIGHCVE-2026-100117
Related by shared AI tags and CWE weakness class. Browse the full archive.