CVE-2026-25896
1 advisory.
npm/fast-xml-parser CVE-2026-25896: critical 9.3, EPSS 0.57%
fast-xml-parser has an entity encoding bypass via regex injection in DOCTYPE entity names
Action: Upgrade fast-xml-parser to 4.5.4 or later.
npm i fast-xml-parser@5.3.5npm i fast-xml-parser@4.5.4Affected
| introduced | fixed | last affected |
|---|---|---|
| 5.0.0 | 5.3.5 | - |
| 4.1.3 | 4.5.4 | - |
Fixed versions
| 5.3.5 | 4.5.4 |
Sources
- osv: GHSA-m7jm-9gc2-mpf2
- https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-m7jm-9gc2-mpf2
- https://nvd.nist.gov/vuln/detail/CVE-2026-25896
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/943ef0eb1b2d3284e72dd74f44a042ee9f07026e
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/ddcd0acf26ddd682cb0dc15a2bd6aa3b96bb1e69
- https://github.com/NaturalIntelligence/fast-xml-parser
- https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.3.5
CVE-2026-25896 · published · modified · JSON