Xmlsoft Libxml2 vulnerabilities

CVE-2013-0339 [MEDIUM] CWE-264 CVE-2013-0339: libxml2 through 2.9.1 does not properly handle external entities expansion unless an application dev libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, a

CVE-2025-27113 [HIGH] CWE-476 CVE-2025-27113: libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pat libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c.

CVE-2012-5134 [MEDIUM] CWE-119 CVE-2012-5134: Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and earlier, as used in Google Chrome before 23.0.1271.91 and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document.

CVE-2016-3627 [HIGH] CWE-674 CVE-2016-3627: The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document.

CVE-2025-32414 [HIGH] CWE-393 CVE-2025-32414: In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Pyth In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python bindings) because of an incorrect return value. This occurs in xmlPythonFileRead and xmlPythonFileReadRaw because of a difference between bytes and characters.

CVE-2019-19956 [HIGH] CWE-401 CVE-2019-19956: xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.

CVE-2016-5131 [HIGH] CWE-416 CVE-2016-5131: Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function.

CVE-2016-3705 [HIGH] CWE-20 CVE-2016-3705: The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.

CVE-2019-20388 [HIGH] CWE-401 CVE-2019-20388: xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak. xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.

CVE-2022-2309 [HIGH] CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwa

CVE-2016-4483 [HIGH] CWE-502 CVE-2016-4483: The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attacker The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.

CVE-2010-4494 [HIGH] CWE-415 CVE-2010-4494: Double free vulnerability in libxml2 2.7.8 and other versions, as used in Google Chrome before 8.0.5 Double free vulnerability in libxml2 2.7.8 and other versions, as used in Google Chrome before 8.0.552.215 and other products, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling.

CVE-2011-3919 [HIGH] CVE-2011-3919: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16 Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

CVE-2015-8806 [HIGH] CVE-2015-8806: dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document.

CVE-2015-5312 [HIGH] CVE-2015-5312: The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly preven The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly prevent entity expansion, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data, a different vulnerability than CVE-2014-3660.

CVE-2026-0990 [MEDIUM] CWE-674 CVE-2026-0990: A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occur A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recu

CVE-2022-29824 [MEDIUM] CWE-190 CVE-2022-29824: In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is af

CVE-2020-24977 [MEDIUM] CWE-125 CVE-2020-24977: GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesIntern GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.

CVE-2015-7942 [MEDIUM] CVE-2015-7942: The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.

CVE-2015-7498 [MEDIUM] CWE-119 CVE-2015-7498: Heap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 before 2.9.3 allow Heap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors related to extracting errors after an encoding conversion failure.