OESA-2026-3039

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3039
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3039
Upstream
Published
2026-07-19T03:48:21Z
Modified
2026-07-19T04:00:22.243264350Z
Summary
libxml2 security update
Details

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library.

Security Fix(es):

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-2026-11979)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP4
libxml2

Package

Name
libxml2
Purl
pkg:rpm/openEuler/libxml2&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.9.10-58.oe2003sp4

Ecosystem specific 

{
    "noarch": [
        "libxml2-help-2.9.10-58.oe2003sp4.noarch.rpm"
    ],
    "src": [
        "libxml2-2.9.10-58.oe2003sp4.src.rpm"
    ],
    "x86_64": [
        "libxml2-2.9.10-58.oe2003sp4.x86_64.rpm",
        "libxml2-debuginfo-2.9.10-58.oe2003sp4.x86_64.rpm",
        "libxml2-debugsource-2.9.10-58.oe2003sp4.x86_64.rpm",
        "libxml2-devel-2.9.10-58.oe2003sp4.x86_64.rpm",
        "python2-libxml2-2.9.10-58.oe2003sp4.x86_64.rpm",
        "python3-libxml2-2.9.10-58.oe2003sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libxml2-2.9.10-58.oe2003sp4.aarch64.rpm",
        "libxml2-debuginfo-2.9.10-58.oe2003sp4.aarch64.rpm",
        "libxml2-debugsource-2.9.10-58.oe2003sp4.aarch64.rpm",
        "libxml2-devel-2.9.10-58.oe2003sp4.aarch64.rpm",
        "python2-libxml2-2.9.10-58.oe2003sp4.aarch64.rpm",
        "python3-libxml2-2.9.10-58.oe2003sp4.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json"
openEuler:22.03-LTS-SP4
libxml2

Package

Name
libxml2
Purl
pkg:rpm/openEuler/libxml2&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.9.14-29.oe2203sp4

Ecosystem specific 

{
    "noarch": [
        "libxml2-help-2.9.14-29.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "libxml2-2.9.14-29.oe2203sp4.src.rpm"
    ],
    "x86_64": [
        "libxml2-2.9.14-29.oe2203sp4.x86_64.rpm",
        "libxml2-debuginfo-2.9.14-29.oe2203sp4.x86_64.rpm",
        "libxml2-debugsource-2.9.14-29.oe2203sp4.x86_64.rpm",
        "libxml2-devel-2.9.14-29.oe2203sp4.x86_64.rpm",
        "python3-libxml2-2.9.14-29.oe2203sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libxml2-2.9.14-29.oe2203sp4.aarch64.rpm",
        "libxml2-debuginfo-2.9.14-29.oe2203sp4.aarch64.rpm",
        "libxml2-debugsource-2.9.14-29.oe2203sp4.aarch64.rpm",
        "libxml2-devel-2.9.14-29.oe2203sp4.aarch64.rpm",
        "python3-libxml2-2.9.14-29.oe2203sp4.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json"
openEuler:24.03-LTS-SP1
libxml2

Package

Name
libxml2
Purl
pkg:rpm/openEuler/libxml2&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.11.9-14.oe2403sp1

Ecosystem specific 

{
    "noarch": [
        "libxml2-help-2.11.9-14.oe2403sp1.noarch.rpm"
    ],
    "src": [
        "libxml2-2.11.9-14.oe2403sp1.src.rpm"
    ],
    "aarch64": [
        "libxml2-2.11.9-14.oe2403sp1.aarch64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp1.aarch64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp1.aarch64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp1.aarch64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp1.aarch64.rpm"
    ],
    "x86_64": [
        "libxml2-2.11.9-14.oe2403sp1.x86_64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp1.x86_64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp1.x86_64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp1.x86_64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json"
openEuler:24.03-LTS-SP3
libxml2

Package

Name
libxml2
Purl
pkg:rpm/openEuler/libxml2&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.11.9-14.oe2403sp3

Ecosystem specific 

{
    "noarch": [
        "libxml2-help-2.11.9-14.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "libxml2-2.11.9-14.oe2403sp3.src.rpm"
    ],
    "x86_64": [
        "libxml2-2.11.9-14.oe2403sp3.x86_64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp3.x86_64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp3.x86_64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp3.x86_64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp3.x86_64.rpm"
    ],
    "aarch64": [
        "libxml2-2.11.9-14.oe2403sp3.aarch64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp3.aarch64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp3.aarch64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp3.aarch64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp3.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json"
openEuler:24.03-LTS-SP4
libxml2

Package

Name
libxml2
Purl
pkg:rpm/openEuler/libxml2&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.11.9-14.oe2403sp4

Ecosystem specific 

{
    "noarch": [
        "libxml2-help-2.11.9-14.oe2403sp4.noarch.rpm"
    ],
    "src": [
        "libxml2-2.11.9-14.oe2403sp4.src.rpm"
    ],
    "x86_64": [
        "libxml2-2.11.9-14.oe2403sp4.x86_64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp4.x86_64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp4.x86_64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp4.x86_64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libxml2-2.11.9-14.oe2403sp4.aarch64.rpm",
        "libxml2-debuginfo-2.11.9-14.oe2403sp4.aarch64.rpm",
        "libxml2-debugsource-2.11.9-14.oe2403sp4.aarch64.rpm",
        "libxml2-devel-2.11.9-14.oe2403sp4.aarch64.rpm",
        "python3-libxml2-2.11.9-14.oe2403sp4.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3039.json"