OESA-2026-3936

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3936

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-3936.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-3936

Upstream

CVE-2026-9499

Published

2026-09-20T13:23:23Z

Modified

2026-09-20T13:30:26Z

Severity

6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator

Summary

qt5-qtbase security update

Details

Qt is a software toolkit for developing applications.

Security Fix(es):

An out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the function is called with a QByteArray that is not NUL-terminated (for example, one created with QByteArray::fromRawData()), the codec-name matching routine reads past the end of the supplied buffer. In most cases this results in an incorrect text codec being selected; in the worst case, if the over-read reaches unmapped memory, the process crashes (denial of service). The over-read is bounded by the length of the longest codec-name candidate, and the out-of-bounds bytes are only compared internally against Qt's fixed list of codec names, so no data is disclosed to an attacker. Applications that do not pass non-NUL-terminated QByteArrays to QTextCodec::codecForName() are not exposed. The affected code resides in the Qt5Compat module from Qt 6.0.0 onward, and in Qt Core (qtbase) in Qt 4.x and Qt 5.x.(CVE-2026-9499)

Database specific

{
    "severity": "Medium"
}

References

Affected packages

openEuler:24.03-LTS-SP3 / qt5-qtbase

Package

Name: qt5-qtbase
Purl: pkg:rpm/openEuler/qt5-qtbase&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

5.15.10-17.oe2403sp3

Ecosystem specific

{
    "aarch64": [
        "qt5-qtbase-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-debuginfo-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-debugsource-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-devel-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-examples-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-gui-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-mysql-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-odbc-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-postgresql-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-private-devel-5.15.10-17.oe2403sp3.aarch64.rpm",
        "qt5-qtbase-static-5.15.10-17.oe2403sp3.aarch64.rpm"
    ],
    "noarch": [
        "qt5-qtbase-common-5.15.10-17.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "qt5-qtbase-5.15.10-17.oe2403sp3.src.rpm"
    ],
    "x86_64": [
        "qt5-qtbase-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-debuginfo-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-debugsource-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-devel-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-examples-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-gui-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-mysql-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-odbc-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-postgresql-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-private-devel-5.15.10-17.oe2403sp3.x86_64.rpm",
        "qt5-qtbase-static-5.15.10-17.oe2403sp3.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-3936.json"