CVE-2026-114115Low· 3.7▾ SunlitVyper 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 20.4 · likelihood 0 · exploitation 0
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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.
vyper >= 0.3.8 <= 0.5.0b1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2020-37288Low· 3.7Vyper 0.1.0b10 before 0.2.3 Invalid Jump Destination via Return in Nested Loops
CVE-2020-37286Medium· 6.5Vyper 0.1.0b4 before 0.3.0 Memory Corruption via Nested Internal Function Calls
CVE-2020-37289Low· 3.7Vyper before 0.3.1 Improper Input Validation of uint8 Interface Return Values
CVE-2020-37287Medium· 5.9Vyper before 0.2.6 Call Stack Corruption via Complex Type Function Arguments
CVE-2021-48018High· 7.4Vyper 0.2.13 before 0.2.15 Storage Corruption via @nonreentrant Decorator
CVE-2021-48019Medium· 4.8Vyper before 0.2.9 Incorrect RETURNDATASIZE in create_forwarder_to Proxies