Vyper through 0.5.0b1 Literal Value Manipulation via Line Separators
Vyper 0.1.0b1 before 0.1.0b17 and 0.4.1 through 0.5.0b1 builds its source-line table with str.splitlines(), which treats characters like form feed and U+2028 as line breaks the Python parser ignores, so numeric literals are classified and validated from shifted source text. An attacker contributing source code can hide these characters in comments, strings or indentation to silently change address, integer or decimal constants.
CVE-2026-114116
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-114116
vyper
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
vyper
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "vyperlang",
"product": "vyper",
"versions": [
{
"status": "affected",
"version": "0.1.0b1",
"lessThan": "0.1.0b17",
"versionType": "python"
},
{
"status": "unaffected",
"version": "0.1.0b17",
"versionType": "python"
}
],
"packageURL": "pkg:pypi/vyper",
"defaultStatus": "unaffected"
},
{
"vendor": "vyperlang",
"product": "vyper",
"versions": [
{
"status": "affected",
"version": "0.4.1",
"versionType": "python",
"lessThanOrEqual": "0.5.0b1"
}
],
"packageURL": "pkg:pypi/vyper",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-114116
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #44983 · Revision 1
- Added to Heist Feed
- Publisher date