GHSA-mpg4-rc92-vx8v
fast-xml-parser vulnerable to ReDOS at currency parsing
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | fast-xml-parser | >= 4.3.5, < 4.4.1 | 4.4.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Summary
A ReDOS that exists on currency.js was discovered by Gauss Security Labs R&D team.
### Details
https://github.com/NaturalIntelligence/fast-xml-parser/blob/v4.4.0/src/v5/valueParsers/currency.js#L10 contains a vulnerable regex
### PoC
pass the following string '\t'.repeat(13337) + '.'
### Impact
Denial of service during currency parsing in experimental version 5 of fast-xml-parser-library
https://gauss-security.com
References
External links from the advisory. They lead to third-party sites.
- https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-mpg4-rc92-vx8v
- https://nvd.nist.gov/vuln/detail/CVE-2024-41818
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/ba5f35e7680468acd7906eaabb2f69e28ed8b2aa
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/d0bfe8a3a2813a185f39591bbef222212d856164
- https://github.com/NaturalIntelligence/fast-xml-parser
- https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/src/v5/valueParsers/currency.js#L10