PT-2026-51248

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An issue exists where XML TOK DATA CHARS is not considered in the doCdataSection function. This leads to a lack of handler call depth tracking for various calls from within handlers during policy...

PT-2026-51242

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow occurs in the XML ParseBuffer function because it lacks a specific check that is implemented in the XML Parse function. Recommendations Update to version 2.8.2 or later...

Linux Distros Unpatched Vulnerability : CVE-2026-56404

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 has an integer overflow in addBinding. CVE-2026-56404 Note that Nessus relies on the presence of the package as reported by the vendor...

Linux Distros Unpatched Vulnerability : CVE-2026-56412

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 does not consider XMLTOKDATACHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in...

Linux Distros Unpatched Vulnerability : CVE-2026-56407

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen. CVE-2026-56407 Note that Nessus relies on the...

PT-2026-51241

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow exists in the getAttributeId function. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be...

PT-2026-51246

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description The xmlwf component contains an integer overflow in the resolveSystemId function. An integer overflow occurs when an arithmetic operation results in a value that exceeds the maximum size of the...

PT-2026-51243

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow occurs in the doProlog function, specifically related to storeEntityValue and the entity textLen variable. An integer overflow is a condition where an arithmetic operation attemp...

PT-2026-51240

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow exists in the addBinding function. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented...

PT-2026-51239

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow exists in the storeAtts function. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented...

Linux Distros Unpatched Vulnerability : CVE-2026-56409

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used. CVE-2026-56409 Note that Nessus relies on the presence...

Linux Distros Unpatched Vulnerability : CVE-2026-56406

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 has an integer overflow in XMLParseBuffer because it lacked a check that was present in XMLParse. CVE-2026-56406 Note that Nessus relies o...

Linux Distros Unpatched Vulnerability : CVE-2026-56410

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId. CVE-2026-56410 Note that Nessus relies on the presence of the package as reported by...

Linux Distros Unpatched Vulnerability : CVE-2026-56408

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 has an integer overflow in copyString. CVE-2026-56408 Note that Nessus relies on the presence of the package as reported by the vendor...

Linux Distros Unpatched Vulnerability : CVE-2026-56411

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations. CVE-2026-56411 Note that Nessus relies on the presence of th...

Linux Distros Unpatched Vulnerability : CVE-2026-56403

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 has an integer overflow in storeAtts. CVE-2026-56403 Note that Nessus relies on the presence of the package as reported by the vendor...

PT-2026-51244

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description An integer overflow exists in the copyString function. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented...

Linux Distros Unpatched Vulnerability : CVE-2026-56131

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free...

Linux Distros Unpatched Vulnerability : CVE-2026-56132

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 i...

ALPINE-CVE-2026-56131

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