Is CVE-2026-114115 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-114115?

CVE-2026-114115 has a CVSS v3 severity of LOW (3.7).

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CVE-2026-114115

Description

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.