CVE-2026-26278

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

UBUNTU-CVE-2026-26278

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278 fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278 fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278 fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

CVE-2026-26278

CVE-2026-26278 affects the fast-xml-parser library. In versions 4.1.3 through 5.3.5, the XML parser could be forced into unbounded entity expansion, causing a single small XML input to consume seconds/minutes of CPU time and freeze the app. The issue is resolved in version 5.3.6. A workaround is ...

Linux Distros Unpatched Vulnerability : CVE-2026-26278

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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. In versions 4.1...

CVE-2026-26278: Improper Restriction of Recursive Entity References in DTDs

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. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible ...

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 processing XML files without relying on C/C++-based libraries or callbacks. Fast-xml-parser versions 5.3.5 and earlier contain security vulnerabilities. These vulnerabiliti...

AIX (IJ57282)

The version of AIX installed on the remote host is prior to APAR IJ57282. It is, therefore, affected by a vulnerability as referenced in the IJ57282 advisory. - A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function...

5-ifc-check-cli (1.0.0), 7ghost (>=4.11.2, <=4.11.46) +3947 more potentially affected by CVE-2026-26278 via fast-xml-parser (>=4.1.3, <=4.5.3)

fast-xml-parser NPM version =4.1.3, =4.11.2, =0.1.1, =0.0.2, =1.0.1, =1.0.0, =0.0.1, =1.0.0, =0.0.1, =0.0.1, =0.0.3 and more Source cves: CVE-2026-26278 Source advisory: SNYK:JS-FASTXMLPARSER-15307668...

5-ifc-check-cli (1.0.0), 7ghost (>=4.11.2, <=4.11.46) +3947 more potentially affected by CVE-2026-26278 via fast-xml-parser (>=4.1.3, <=4.5.3)

fast-xml-parser NPM version =4.1.3, =4.11.2, =0.1.1, =0.0.2, =1.0.1, =1.0.0, =0.0.1, =1.0.0, =0.0.1, =0.0.1, =0.0.3 and more Source cves: CVE-2026-26278 Source advisory: OSV:GHSA-JMR7-XGP7-CMFJ...

GHSA-JMR7-XGP7-CMFJ fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)

Summary The XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible to make the parser spend seconds or even minutes processing a single request, effectively freezing the application. Details There is a check in DocTypeReader.js that trie...

@activepieces/piece-amazon-s3 (>=0.5.8, <=0.6.4), @activepieces/piece-amazon-ses (>=0.0.1, <=0.1.4) +1111 more potentially affected by CVE-2026-26278 via fast-xml-parser (>=5.0.1, <=5.3.5)

fast-xml-parser NPM version =5.0.1, =0.5.8, =0.0.1, =13.1.4, =1.0.0, =1.9.12, =1.0.3, =1.1.31, =1.0.0, =1.0.0, =1.7.16, =2.33.6, =1.4.37, =1.6.3 and more Source cves: CVE-2026-26278 Source advisory: SNYK:JS-FASTXMLPARSER-15307668...

@activepieces/piece-amazon-s3 (>=0.5.8, <=0.6.4), @activepieces/piece-amazon-ses (>=0.0.1, <=0.1.4) +1111 more potentially affected by CVE-2026-26278 via fast-xml-parser (>=5.0.1, <=5.3.5)

fast-xml-parser NPM version =5.0.1, =0.5.8, =0.0.1, =13.1.4, =1.0.0, =1.9.12, =1.0.3, =1.1.31, =1.0.0, =1.0.0, =1.7.16, =2.33.6, =1.4.37, =1.6.3 and more Source cves: CVE-2026-26278 Source advisory: OSV:GHSA-JMR7-XGP7-CMFJ...

XML Entity Expansion

Overview fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries Affected versions of this package are vulnerable to XML Entity Expansion in replaceEntitiesValue when handling excessive DOCTYPE input. An attacker can cause excessive resource consumption and make the...

fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)

Summary The XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible to make the parser spend seconds or even minutes processing a single request, effectively freezing the application. Details There is a check in DocTypeReader.js that trie...