Bug 2558184 - CVE-2026-114118 vyper: Vyper: Deployment of empty smart contracts via integer underflow in create_from_blueprint [fedora-all]
Summary: CVE-2026-114118 vyper: Vyper: Deployment of empty smart contracts via integer...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: vyper
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Peter Lemenkov
QA Contact:
URL:
Whiteboard: {"flaws": ["cac1d8eb-acea-4763-b227-9...
Depends On:
Blocks: CVE-2026-114118
TreeView+ depends on / blocked
 
Reported: 2026-10-21 10:14 UTC by Laura Pardo
Modified: 2026-10-21 10:14 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Laura Pardo 2026-10-21 10:14:57 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Vyper 0.3.4 through 0.5.0b1 computes the remaining blueprint size in create_from_blueprint by uint256 subtraction without first checking that code_offset is below the blueprint's code size, so a huge offset wraps to a small positive value. An attacker controlling code_offset can make a factory deploy contracts with no runtime code, potentially trapping ETH and tokens.


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