Security Bulletin: DataStage on Cloud Pak for Data has several vulnerabilities due to open source software

Summary Open source packages are used as part of the overall processing in DataStage on Cloud Pak for Data. Vulnerability Details CVEID:CVE-2026-24842 DESCRIPTION: node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, Expat, LibXMLTok

LibExpat through version 2.5.0 causes a denial of service resource consumption because multiple reparings are required when dealing with large tokens, resulting in multiple buffer fills...

Astra Linux – Vulnerability in Firefox and Thunderbird

In ExPat before version 2.7.2, the libexpat library allowed attackers to trigger large dynamic memory allocations through a small document that was submitted for parsing...

Astra Linux – Vulnerability in Firefox, expat, libxmltok, Thunderbird

The libexpat library before version 2.4.9 has a use-after-free issue in the doContent function of the xmlparse.c file...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, and Expat

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

Astra Linux – Vulnerabilities in Firefox, Thunderbird, and Expat

In libexpat through version 2.4.9, there was a use-after-free issue caused by excessive destruction of a shared DTD in the XMLExternalEntityParserCreate function, especially in out-of-memory situations...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, Expat, LibXMLTok

The issue with integer overflow occurs in storeAtts in the xmlparse.c file, within the Expat library also known as libexpat, before version 2.4.3...

Astra Linux – Vulnerabilities in Firefox, Thunderbird, Expat, LibXMLTok

The nextScaffoldPart function in xmlparse.c of Expat also known as libexpat, prior to version 2.4.3, has an integer overflow issue...

Important: expat

Issue Overview: libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLGetBuffer, XMLParse, XMLParseBuffer, XMLParserFree, or XMLParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur, CVE-2026-50219 libexpat before 2.8.2 lacks handler...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: firefox (UTSA-2023-001403)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-001403 advisory. In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XMLExternalEntityParserCreate in out-of-memory situations...

AlmaLinux 10 : expat (ALSA-2026:64810)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:64810 advisory. expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking CVE-2026-50219 expat: libexpat: Arbitrary Code Execution via...

RockyLinux 9 : expat (RLSA-2026:64812)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:64812 advisory. expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking CVE-2026-50219 expat: libexpat: Arbitrary Code Execution via...

RockyLinux 8 : expat (RLSA-2026:64809)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:64809 advisory. expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking CVE-2026-50219 expat: libexpat: Arbitrary Code Execution via...

libexpat: libexpat: Denial of Service via hash flooding attack with crafted XML

A flaw was found in libexpat. This vulnerability arises from the software misinterpreting a return code, leading to insufficient randomness entropy for hash functions. A remote attacker could exploit this by sending specially crafted XML content, triggering hash flooding attacks. This can result ...

libexpat: libexpat: Memory corruption vulnerability allows arbitrary code execution or denial of service

A flaw was found in libexpat. The library's handling of custom encoding callbacks lacks proper tracking of handler call depth, which can lead to a use-after-free vulnerability. This memory corruption flaw could allow a local attacker to cause a denial of service or potentially execute arbitrary...

expat: libexpat: Integer Overflow Vulnerability Leading to Information Disclosure or Code Execution

A flaw was found in libexpat, a software library used for parsing XML Extensible Markup Language documents. An attacker could exploit an integer overflow vulnerability in the xmlwf utility by crafting malicious NOTATION declarations. This could lead to the disclosure of sensitive information or...

expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking

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,...

expat: libexpat: Arbitrary Code Execution via Heap-based Buffer Overflow

A flaw was found in libexpat, a library used for parsing XML data. An attacker could exploit a heap-based buffer overflow, a type of memory error, by providing specially crafted XML input. This vulnerability occurs when the library mishandles memory reallocation while processing XML, particularly...

expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking

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,...

expat: libexpat: Arbitrary Code Execution via Heap-based Buffer Overflow

A flaw was found in libexpat, a library used for parsing XML data. An attacker could exploit a heap-based buffer overflow, a type of memory error, by providing specially crafted XML input. This vulnerability occurs when the library mishandles memory reallocation while processing XML, particularly...