CVE-2026-114115
CVE-2026-114115 · Vyper 0.3.8 through 0.5.0b1 Memory Misread via Ternary Nested Array Selection
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Vyper 0.3.8 through 0.5.0b1 contains a compiler miscompilation vulnerability in parse_IfExp that reads nested arrays with narrower inner bounds using the wider result type's memory layout. When a ternary selects the narrower array, inner arrays after the first are read at wrong offsets, causing contracts to silently store corrupted values or revert.
CVSS 6.3 · Medium · EPSS 0.3%
- Published
- Updated
Affected products and versions
vyper
- Versions
- ≥ 0.3.8, ≤ 0.5.0b1: Affected (python)
No fix published