GHSA-fj3w-jwp8-x2g3
fast-xml-parser has stack overflow in XMLBuilder with preserveOrder
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-27942
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Description
### Impact Application crashes with stack overflow when user use XML builder with `prserveOrder:true` for following or similar input ``` [{ 'foo': [ { 'bar': [{ '@_V': 'baz' }] } ] }] ``` Cause: `arrToStr` was not validating if the input is an array or a string and treating all non-array values as text content. _What kind of vulnerability is it? Who is impacted?_ ### Patches Yes in 5.3.8 ### Workarounds Use XML builder with `preserveOrder:false` or check the input data before passing to builder. ### References [_Are there any links users can visit to find out more?_](https://github.com/NaturalIntelligence/fast-xml-parser/pull/791)
Paquets affectés
| Paquet | Versions |
|---|---|
| npm · fast-xml-parser | introduced 5.0.0, fixed 5.3.8 |
| npm · fast-xml-parser | introduced 4.0.0-beta.0, fixed 4.5.4 |
Références
- https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-fj3w-jwp8-x2g3 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-27942 ADVISORY
- https://github.com/NaturalIntelligence/fast-xml-parser/pull/791 WEB
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/c13a961910f14986295dd28484eee830fa1a0e8a WEB
- https://github.com/NaturalIntelligence/fast-xml-parser PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |