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...

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...

PT-2026-50832

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.2 Description A heap-based buffer overflow occurs in the doProlog function within xmlparse.c. This issue arises because the reallocation of the scaffold backing array is mishandled when data-structure sharing is...

Siemens RUGGEDCOM RST2428P NULL Pointer Dereference (CVE-2026-24515)

In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32776)

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-...

Hitachi Energy RTU500 Infinite Loop (CVE-2026-32777)

libexpat before 2.7.5 allows an infinite loop while parsing DTD content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32778)

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier out-of-memory condition, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

EulerOS 2.0 SP13 : expat (EulerOS-SA-2026-2328)

According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.CVE-2026-32778...

The vulnerability of the libexpat library for analyzing XML files is related to its inefficient algorithmic complexity, which allows attackers to trigger a service failure.

The vulnerability of the libexpat library for processing XML files is related to the inefficient algorithmic complexity in handling attribute names. Exploiting this vulnerability could allow a malicious actor to cause service failures...

CVE-2026-49472

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIXprologTok, in...

CVE-2026-49472

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIXprologTok, in...

CVE-2026-49472 FreeSWITCH includes a vulnerable function, PREFIX(prologTok)() from libexpat

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIXprologTok, in...

CVE-2026-49472

CVE-2026-49472 affects FreeSWITCH (pre-1.11.0). The issue is a vulnerable PREFIX(prologTok)() in libs/xmlrpc-c/lib/expat/xmltok/xmltok_impl.c, cloned from an outdated libexpat lacking a security patch. Root cause: missing patch in the referenced expat-derived code. Impact: potential network-expos...

Security Bulletin: Multiple vulnerabilities due to libexpat have been identified in IBM HTTP Server used by IBM Rational ClearQuest

Summary IBM HTTP Server IHS is used by the IBM Rational ClearQuest server and web components. Information about security vulnerabilities affecting IHS have been published in a security bulletin. Vulnerability Details Refer to the security bulletins listed in the Remediation/Fixes section Affected...

FreeSWITCH 安全漏洞

FreeSWITCH is a free and open-source communication software developed by Anthony Minessale, an individual developer from the United States. This software can be used to create audio, video, and short message-based products and applications. Prior to FreeSWITCH 1.11.0, there were security...

PT-2026-47845

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIXprologTok, in...

CVE-2026-50219

A flaw was found in libexpat. This vulnerability occurs because the library, in versions before 2.8.2, does not properly track handler call depth when certain XML parsing functions are invoked from within handlers during a policy violation. This oversight can lead to a use-after-free condition,...

EulerOS Virtualization 2.13.0 : expat (EulerOS-SA-2026-2163)

According to the versions of the expat package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data.CVE-2026-24515 In libexpat...

EulerOS Virtualization 2.12.0 : expat (EulerOS-SA-2026-2098)

According to the versions of the expat package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data.CVE-2026-24515 In libexpat...

EulerOS Virtualization 2.10.0 : expat (EulerOS-SA-2026-2045)

According to the versions of the expat package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data.CVE-2026-24515 In libexpat...