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Expat libexpatUse After Free

Risk 45
Severity
5.9
First published (updated )
CVE-2026-56412

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56411

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56410

Expat libexpatInteger Overflow

Risk 57
Severity
6.5
First published (updated )
CVE-2026-56409

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56408
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Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56407

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56406

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56405

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56404

Expat libexpatInteger Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56403
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Expat libexpatBuffer Overflow

Risk 61
Severity
6.9
First published (updated )
CVE-2026-56132

Expat libexpatUse After Free

Risk 39
Severity
4.9
First published (updated )
CVE-2026-56131

Expat libexpatUse After Free

Risk 45
Severity
5.9
First published (updated )
CVE-2026-50219

oss-seclibexpat 2.8.1 fixes CVE-2026-45186 (denial of service)

First published (updated )
https://seclists.org/oss-sec/2026/q2/486

Python PythonThe expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

Risk 32
Severity
6.3
EPSS
0.06%
First published (updated )
CVE-2026-7210
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Expat libexpatIn libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a d…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2468575

Expat libexpatlibexpat 2.8.1 fixes CVE-2026-45186 (denial of service)

Risk 46
Severity
7.5
First published (updated )
CVE-2026-45186

oss-seclibexpat 2.8.0 fixes CVE-2026-41080 (insufficient entropy)

First published (updated )
https://seclists.org/oss-sec/2026/q2/218

Libexpat Project Libexpatlibexpat 2.8.0 fixes CVE-2026-41080 (insufficient entropy)

Risk 46
Severity
7.5
First published (updated )
CVE-2026-41080

oss-seclibexpat 2.7.5 fixes the vulnerabilities (2x null def, 1x infinite loop)

First published (updated )
https://seclists.org/oss-sec/2026/q1/331
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Expat ExpatWhen an Expat parser with a registered ElementDeclHandler parses an inline document type definition …

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2448181

expat looking for help with another unfixed non-public denial-of-service vulnerability [CVE-2025-66382]

First published (updated )
https://seclists.org/oss-sec/2025/q4/224

Expat libexpatlibexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a sm…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2395108

F5 BIG-IPlibexpat 2.7.2 fixes CVE-2025-59375 (DoS, CWE-770)

Risk 48
Severity
7.5
First published (updated )
CVE-2025-59375

expat vulnerability CVE-2024-8176 / impact of cursion stack overflow vulnerabilities

First published (updated )
https://seclists.org/oss-sec/2025/q1/224
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expat vulnerability CVE-2024-8176 / impact of cursion stack overflow vulnerabilities

First published (updated )
https://seclists.org/oss-sec/2025/q1/223

[CVE-2024-8176] Long linear chains of entities crash Expat with stack overflow due to use of unlimited cursion

First published (updated )
https://seclists.org/oss-sec/2025/q1/221

Expat libexpatAn issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser funct…

Risk 18
Severity
4
First published (updated )
REDHAT-BUG-2321987

Apple iPadOSLibexpat: expat: improper restriction of xml entity expansion depth in libexpat

Risk 48
Severity
7.5
First published (updated )
CVE-2024-8176

Expat libexpatThe libexpat library is vulnerable to a stack overflow due to uncontrolled recursion when processing…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2310137
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