CVE-2026-114115: medium-severity vulnerability in vyperlang vyper
Vyper 0.3.8 through 0.5.0b1 Memory Misread via Ternary Nested Array Selection
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.3%
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
vyperlang · vyperRelated CVEs — vyperlang vyper
In the same product, most dangerous first.
CVE-2024-24563CRITICALVyper array negative index vulnerabilityEPSS 1.5%CVE-2022-24845HIGHInteger bounds error in VyperEPSS 1.4%CVE-2022-29255HIGHMultiple evaluation of contract address in call in vyperEPSS 1.3%CVE-2023-31146HIGHVyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignmentEPSS 1.3%CVE-2021-41121HIGHMemory corruption in VyperEPSS 1.1%CVE-2022-24787HIGHIncorrect Comparison in VyperEPSS 1.0%