Уязвимости expat · Страница 2

CVE-2026-56403

libexpat before 2.8.2 has an integer overflow in storeAtts.

• Обновитесь до 2.8.2-1

CVE-2026-56132

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.

• Обновитесь до 2.8.2-1

CVE-2026-56131

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

• Обновитесь до 2.8.2-1

CVE-2026-50219

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,

• Обновитесь до 2.8.2-1

CVE-2026-45186

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.

• Обновитесь до 2.8.0-2

CVE-2026-41080

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.

• Обновитесь до 2.8.0-1

CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.

• Обновитесь до 2.7.5-1

CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content.

• Обновитесь до 2.7.5-1

CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.

• Обновитесь до 2.7.5-1

CVE-2026-25210

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.

• Обновитесь до 2.7.4-1

CVE-2026-24515

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.

• Обновитесь до 2.7.3-2

CVE-2025-66382

In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.

CVE-2025-59375

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

• Обновитесь до 2.7.2-1

Libexpat: expat: improper restriction of xml entity expansion depth in libexpat

A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.

• Обновитесь до 2.7.0-1

CVE-2024-50602

An issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser function because XML_StopParser can stop/suspend an unstarted parser.

• Обновитесь до 2.6.3-2

CVE-2024-45492

An issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer overflow for m_groupSize on 32-bit platforms (where UINT_MAX equals SIZE_MAX).

• Обновитесь до 2.6.2-2

CVE-2024-45491

An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).

• Обновитесь до 2.6.2-2

CVE-2024-45490

An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.

• Обновитесь до 2.6.2-2

CVE-2024-28757

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

• Обновитесь до 2.6.1-2

CVE-2023-52426

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

• Обновитесь до 2.6.0-1