GHSA-5WM8-GMM8-39J9 fast-xml-builder allows attribute values with unwanted quotes to bypass malicious or unwanted attributes

Summary 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. Detail Malicious Input a: "@attr": '" onClick="alert1' Output x...

fast-xml-builder allows attribute values with unwanted quotes to bypass malicious or unwanted attributes

Summary 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. Detail Malicious Input a: "@attr": '" onClick="alert1' Output x...

NPM: fast-xml-builder Comment Value regex can be bypassed

NPM: fast-xml-builder Comment Value regex can be bypassed vulnerability discovered by ? in WordPress Npm fast-xml-builder versions 1.1.5...

XML Injection

Overview Affected versions of this package are vulnerable to XML Injection due to the incomplete sanitization of XML comments. An attacker can inject arbitrary XML or HTML content by including three consecutive dashes in the comment value. Note: This issue was introduced by the fix for...

CVE-2026-41650

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "--" sequence in comment content or the "" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection...

PT-2026-34614

Name of the Vulnerable Software and Affected Versions fast-xml-parser versions prior to 5.7.0 Description XMLBuilder fails to escape the "--" sequence in comment content and the "" sequence in CDATA sections when generating XML from JavaScript objects. This flaw enables XML injection if...

@activepieces/piece-amazon-textract (>=0.2.0 <=0.3.0), @activepieces/piece-salesforce (=0.7.2) +4 more potentially affected by CVE-2026-41650 +1 more via fast-xml-builder (>=1.1.1 <=1.1.4)

fast-xml-builder NPM version =1.1.1, =0.2.0, =0.2.1, =0.0.4, =10.4.0, =10.5.0 Source cves: CVE-2026-41650, CVE-2026-44664 Source advisory: SNYK:JS-FASTXMLBUILDER-16133760...

Stack Overflow

fast-xml-parser is vulnerable to stack overflow vulnerability. The vulnerability is due to improper handling in the XML builder when preserveOrder:true is enabled, which allows an attacker to trigger a stack overflow and crash the application by providing crafted input data...

fast-xml-parser has stack overflow in XMLBuilder with preserveOrder

Impact Application crashes with stack overflow when user use XML builder with prserveOrder:true for following or similar input 'foo': 'bar': '@V': 'baz' Cause: arrToStr was not validating if the input is an array or a string and treating all non-array values as text content. What kind of...

CVE-2026-27942

A flaw was found in fast-xml-parser. A user can exploit this flaw by processing specially crafted XML data with the XML builder when the preserveOrder option is enabled. This can lead to a stack overflow, causing the application to crash and resulting in a Denial of Service DoS. Mitigation To...

UBUNTU-CVE-2026-27942

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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with preserveOrder:true. Version 5.3.8 fixes the issue. As...

CVE-2026-27942

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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with preserveOrder:true. Version 5.3.8 fixes the issue. As...

CVE-2026-27942

CVE-2026-27942 affects fast-xml-parser. Before 5.3.8, XMLBuilder with preserveOrder: true can crash with a stack overflow. The issue is fixed in 5.3.8. Workarounds include building XML with preserveOrder: false or validating input data before passing to the builder. Connected sources also referen...

CVE-2026-27942

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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with preserveOrder:true. Version 5.3.8 fixes the issue. As...

CVE-2026-27942 fast-xml-parser has stack overflow in XMLBuilder with preserveOrder

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. Prior to version 5.3.8, the application crashes with stack overflow when user use XML builder with preserveOrder:true. Version 5.3.8 fixes the issue. As...

fast-xml-parser 安全漏洞

fast-xml-parser is an open-source library developed by Natural Intelligence. It is used for quickly validating, parsing, and constructing XML files without relying on C/C++-based libraries or callbacks. Versions of fast-xml-parser prior to 5.3.8 contained a security vulnerability. This...

Adobe ColdFusion XML External Entity References Improperly Restricted Vulnerability (CNVD-2026-0494343)

Adobe ColdFusion is a dynamic Web server platform and application development framework maintained by Adobe for rapidly building and deploying data-driven dynamic Web sites, Web applications, and enterprise-class services. Adobe ColdFusion suffers from an improperly restricted XML external entity...

EUVD-2023-0615

Malicious code in bioql PyPI...

Apache Camel allows remote actor to read arbitrary files via external entity in invalid XML string or GenericFile object

Multiple XML external entity XXE vulnerabilities in builder/xml/XPathBuilder.java in Apache Camel before 2.13.4 and 2.14.x before 2.14.2 allow remote attackers to read arbitrary files via an external entity in an invalid XML 1 String or 2 GenericFile object in an XPath query...