VULNERABILITY INTELLIGENCE

CVE-2023-26920

CVSS score6.5 MEDIUM

EPSS probability1.15%

CISA KEVNot currently listed

Published2023-12-12

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.

Weakness classification

nvd@nist.gov: CWE-1321

Primary references

cve@mitre.org — Exploit
cve@mitre.org — Patch
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit
af854a3a-2127-422b-91ae-364da2661108 — Patch
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory