Known Vulnerabilities for Expat by Libexpat

Listed below are 10 of the newest known vulnerabilities associated with "Expat" by "Libexpat".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-93990 json Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed... Not Provided 2026-09-19 2026-09-28
CVE-2026-90648 json wasm2c in WebAssembly wabt through 1.0.41 allows sandbox escape in some situations that primarily involve 32-bit platforms, a... Not Provided 2026-09-13 2026-09-14
CVE-2026-76641 json Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by proces... Not Provided 2026-08-20 2026-08-21
CVE-2026-66046 json Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() ... Not Provided 2026-08-18 2026-08-21
CVE-2026-7210 json `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a c... Not Provided 2026-05-11 2026-10-02
CVE-2026-4224 json When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply neste... Not Provided 2026-03-16 2026-08-13
CVE-2025-59375 json libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is subm... Not Provided 2025-09-15 2026-10-15
CVE-2022-25315 json In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. Not Provided 2022-02-18 2026-10-14
CVE-2022-25314 json In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. Not Provided 2022-02-18 2026-10-14
CVE-2022-25313 json In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in th... Not Provided 2022-02-18 2026-10-14
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationLibexpatExpat2.2.9
ApplicationLibexpatExpat2.2.8
ApplicationLibexpatExpat2.2.7
ApplicationLibexpatExpat2.2.6
ApplicationLibexpatExpat2.2.5
ApplicationLibexpatExpat2.2.4
ApplicationLibexpatExpat2.2.3
ApplicationLibexpatExpat2.2.2
ApplicationLibexpatExpat2.2.10
ApplicationLibexpatExpat2.2.1
ApplicationLibexpatExpat2.2.0
ApplicationLibexpatExpat2.1.1
ApplicationLibexpatExpat2.1.0
ApplicationLibexpatExpat2.0.1
ApplicationLibexpatExpat2.0.0
ApplicationLibexpatExpat1.95.8
ApplicationLibexpatExpat1.95.7
ApplicationLibexpatExpat1.95.6
ApplicationLibexpatExpat1.95.5
ApplicationLibexpatExpat1.95.4
Results limited to 20 most recent known configurations

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