fast-toml through 0.5.4 Prototype Pollution via __proto__ Keys in Parsed TOML
fast-toml through 0.5.4 contains a prototype pollution vulnerability that allows attackers to modify Object.prototype by supplying TOML containing __proto__, constructor or prototype key segments. Attackers can pass [__proto__] or [constructor.prototype] table headers or __proto__.x dotted keys to parse() to pollute all objects, causing denial of service or authorization bypass.
CVE-2021-48012
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-2021-48012
fast-toml
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
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/Gin-Quin/fast-toml",
"vendor": "Gin-Quin",
"product": "fast-toml",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "0.5.4"
}
],
"packageURL": "pkg:npm/fast-toml",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2021-48012
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #17112 · Revision 1
- Added to Heist Feed
- Publisher date