Is CVE-2026-25896 actively exploited?

No active exploitation of CVE-2026-25896 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-25896 be exploited remotely?

Yes. CVE-2026-25896 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-25896?

CVE-2026-25896 has a CVSS score of 9.3 (CRITICAL) and an EPSS exploitation probability of 0.04%.

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CRITICAL

CVE-2026-25896

CWE-185Published: February 20, 2026· Updated: Feb 23, 2026

9.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.1th

Official Description

fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vulnerability is fixed in 5.3.5.

NVD Source

Technical Analysis

CVE-2026-25896 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 9.3.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.