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Exploits
ID:12433 - Exploit for NULL pointer dereference in fast-xml-parser - CVE-2026-26278
ID:12433 - Exploit for NULL pointer dereference in fast-xml-parser - CVE-2026-26278
Published: February 23, 2026
Vulnerability identifier: #VU123126
Vulnerability risk: Medium
CVE-ID: CVE-2026-26278
CWE-ID: CWE-476
Exploitation vector: Remote access
Vulnerable software:
fast-xml-parser
fast-xml-parser
Link to public exploit:
Vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the replaceEntitiesValue() function in OrderedObjParser.js. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.