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Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package qt6-rpm-macros  (opens in a new tab)

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EPSS
0.3% (23rd percentile)

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  • Snyk IDSNYK-CENTOS10-QT6RPMMACROS-19244086
  • published25 Aug 2026
  • disclosed21 Jul 2026
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Introduced: 21 Jul 2026

CVE-2026-9499  (opens in a new tab)
CWE-125  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qt6-rpm-macros package and not the qt6-rpm-macros package as distributed by Centos.

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.