Improper Validation of Specified Quantity in Input

Overview org.webjars.npm:fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in the DocTypeReader component when the maxEntityCount or maxEntitySize configurati...

5-ifc-check-cli (1.0.0), 7ghost (>=4.11.2, <=4.11.46) +4234 more potentially affected by CVE-2026-33349 via fast-xml-parser (>=4.0.0, <=4.5.4)

fast-xml-parser NPM version =4.0.0, =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-2026-33349 Source advisory: OSV:GHSA-JP2Q-39XQ-3W4G...

Entity Expansion Limits Bypassed When Set to Zero Due to JavaScript Falsy Evaluation in fast-xml-parser

Summary The DocTypeReader in fast-xml-parser uses JavaScript truthy checks to evaluate maxEntityCount and maxEntitySize configuration limits. When a developer explicitly sets either limit to 0 — intending to disallow all entities or restrict entity size to zero bytes — the falsy nature of 0 in...

GHSA-JP2Q-39XQ-3W4G Entity Expansion Limits Bypassed When Set to Zero Due to JavaScript Falsy Evaluation in fast-xml-parser

Summary The DocTypeReader in fast-xml-parser uses JavaScript truthy checks to evaluate maxEntityCount and maxEntitySize configuration limits. When a developer explicitly sets either limit to 0 — intending to disallow all entities or restrict entity size to zero bytes — the falsy nature of 0 in...

@activepieces/piece-amazon-s3 (>=0.5.8, <=0.6.4), @activepieces/piece-amazon-ses (>=0.0.1, <=0.1.4) +1279 more potentially affected by CVE-2026-33349 via fast-xml-parser (>=5.0.1, <=5.5.6)

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-2026-33349 Source advisory: OSV:GHSA-JP2Q-39XQ-3W4G...

Improper Validation of Specified Quantity in Input

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 Improper Validation of Specified Quantity in Input in the DocTypeReader component when the maxEntityCount or maxEntitySize configuration options are...

EUVD-2006-7232

XML::Parser versions through 2.47 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

AZL-80196 CVE-2006-10003 affecting package perl-XML-Parser for versions less than 2.47-2

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in stserialstack. In the case stackptr == stacksize - 1, the stack will NOT be expanded. Then the new value will be written at location ++stackptr, which equals stacksize and therefore falls just outside the allocat...

CVE-2006-10003

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in stserialstack. In the case stackptr == stacksize - 1, the stack will NOT be expanded. Then the new value will be written at location ++stackptr, which equals stacksize and therefore falls just outside the allocat...

CVE-2006-10002

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

UBUNTU-CVE-2006-10002

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

CVE-2006-10003 XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in stserialstack. In the case stackptr == stacksize - 1, the stack will NOT be expanded. Then the new value will be written at location ++stackptr, which equals stacksize and therefore falls just outside the allocat...

CVE-2006-10003

XML::Parser (Perl) up to version 2.47 contains an off-by-one heap buffer overflow in st_serial_stack, enabling memory corruption and crashes on deeply nested XML. A patched version is available (varies by distro) — Debian fixes 2.46-2+deb11u1 and 2.47-2~deb13u1; RedHat/Debian/Linux advisories als...

CVE-2006-10002

The XML::Parser Perl module (specifically versions through 2.47 ) contains a heap buffer overflow vulnerability in the parse_stream() function within the Expat.xs component. The root cause is a discrepancy where Perl's read() function returns decoded characters, while SvPV() returns multi-byte UT...

CVE-2006-10002 XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

CVE-2006-10002

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

CVE-2006-10002 XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

CVE-2006-10003: Off-by-one Error

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in stserialstack. In the case stackptr == stacksize - 1, the stack will NOT be expanded. Then the new value will be written at location ++stackptr, which equals stacksize and therefore falls just outside the allocat...

PT-2026-26487

Name of the Vulnerable Software and Affected Versions fast-xml-parser versions 4.0.0-beta.3 through 5.5.6 Description The DocTypeReader in fast-xml-parser incorrectly uses JavaScript truthy checks to evaluate maxEntityCount and maxEntitySize configuration limits. When a developer sets either limi...

CVE-2006-10002: Heap-based Buffer Overflow

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...