CVE-2026-114115 — Vyper 0.3.8 through 0.5.0b1 Memory Misread via Ternary Nested Array Selection
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 mem…
Published: 2026-10-21 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7