CVE & CISA-KEV Catalog

CVE-2026-44665

MEDIUM
6.1
CVSS v3
NVD

Description

fast-xml-builder builds XML from JSON. Prior to 1.1.7, when an input data has quotes in attribute values but process entities is not enabled, it breaks the attribute value into multiple attributes. This gives the room for an attacker to insert unwanted attributes to the XML/HTML. This vulnerability is fixed in 1.1.7.

CWE-91

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.21%probability of exploitation in 30 days
11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Other references1
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Markdown

[![CVE-2026-44665](https://tridentstack.com/cve/badge/CVE-2026-44665.svg)](https://tridentstack.com/cve/CVE-2026-44665)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-44665"><img src="https://tridentstack.com/cve/badge/CVE-2026-44665.svg" alt="CVE-2026-44665"></a>

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-18.