Vulnerabilities (CVE)

Filtered by vendor Xmlsoft Subscribe
Total 144 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2025-6170 2 Redhat, Xmlsoft 4 Enterprise Linux, Jboss Core Services, Openshift Container Platform and 1 more 2026-10-30 N/A 2.5 LOW
A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections.
CVE-2026-6732 3 Ibm, Redhat, Xmlsoft 7 Aix, Vios, Enterprise Linux and 4 more 2026-10-26 N/A 6.5 MEDIUM
A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.
CVE-2026-6653 1 Xmlsoft 1 Libxml2 2026-10-25 N/A 9.8 CRITICAL
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.
CVE-2026-11979 1 Xmlsoft 1 Libxml2 2026-10-25 N/A 7.8 HIGH
libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking. By supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame. Successful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process. This issue has been fixed in the commit c2e233fc. NOTE: The maintainers of this project did not agree that this issue is a vulnerability and considered it a bug.
CVE-2025-9714 1 Xmlsoft 1 Libxml2 2026-10-19 N/A 6.2 MEDIUM
Uncontrolled recursion in XPath evaluation in libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions `xmlXPathRunEval`, `xmlXPathCtxtCompile`, and `xmlXPathEvalExpr` were resetting recursion depth to zero before making potentially recursive calls. When such functions were called recursively this could allow for uncontrolled recursion and lead to a stack overflow. These functions now preserve recursion depth across recursive calls, allowing recursion depth to be controlled.
CVE-2024-34459 1 Xmlsoft 1 Libxml2 2026-10-15 N/A 7.5 HIGH
An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.
CVE-2024-25062 1 Xmlsoft 1 Libxml2 2026-10-15 N/A 7.5 HIGH
An issue was discovered in libxml2 before 2.11.7 and 2.12.x before 2.12.5. When using the XML Reader interface with DTD validation and XInclude expansion enabled, processing crafted XML documents can lead to an xmlValidatePopElement use-after-free.
CVE-2023-45322 1 Xmlsoft 1 Libxml2 2026-10-15 N/A 6.5 MEDIUM
libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."
CVE-2023-39615 1 Xmlsoft 1 Libxml2 2026-10-15 N/A 6.5 MEDIUM
Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.
CVE-2023-29469 2 Debian, Xmlsoft 2 Debian Linux, Libxml2 2026-10-14 N/A 6.5 MEDIUM
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
CVE-2023-28484 2 Debian, Xmlsoft 2 Debian Linux, Libxml2 2026-10-14 N/A 6.5 MEDIUM
In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.
CVE-2022-40304 3 Apple, Netapp, Xmlsoft 22 Ipados, Iphone Os, Macos and 19 more 2026-10-14 N/A 7.8 HIGH
An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.
CVE-2022-40303 3 Apple, Netapp, Xmlsoft 22 Ipados, Iphone Os, Macos and 19 more 2026-10-14 N/A 7.5 HIGH
An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.
CVE-2022-29824 5 Debian, Fedoraproject, Netapp and 2 more 24 Debian Linux, Fedora, Active Iq Unified Manager and 21 more 2026-10-14 4.3 MEDIUM 6.5 MEDIUM
In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.
CVE-2022-23308 6 Apple, Debian, Fedoraproject and 3 more 44 Ipados, Iphone Os, Mac Os X and 41 more 2026-10-14 4.3 MEDIUM 7.5 HIGH
valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.
CVE-2021-3541 4 Netapp, Oracle, Redhat and 1 more 27 Active Iq Unified Manager, Cloud Backup, Clustered Data Ontap and 24 more 2026-10-14 4.0 MEDIUM 6.5 MEDIUM
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
CVE-2021-3537 6 Debian, Fedoraproject, Netapp and 3 more 20 Debian Linux, Fedora, Active Iq Unified Manager and 17 more 2026-10-14 4.3 MEDIUM 5.9 MEDIUM
A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.
CVE-2021-3518 6 Debian, Fedoraproject, Netapp and 3 more 19 Debian Linux, Fedora, Active Iq Unified Manager and 16 more 2026-10-14 6.8 MEDIUM 8.8 HIGH
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.
CVE-2021-3517 6 Debian, Fedoraproject, Netapp and 3 more 29 Debian Linux, Fedora, Active Iq Unified Manager and 26 more 2026-10-14 7.5 HIGH 8.6 HIGH
There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.
CVE-2021-3516 6 Debian, Fedoraproject, Netapp and 3 more 9 Debian Linux, Fedora, Clustered Data Ontap and 6 more 2026-10-14 6.8 MEDIUM 7.8 HIGH
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.