Your message dated Mon, 28 Sep 2026 22:18:25 +0200
with message-id <[email protected]>
and subject line Re: Bug#1148673: qtbase-opensource-src: CVE-2026-76151
has caused the Debian Bug report #1148673,
regarding qtbase-opensource-src: CVE-2026-76151
to be marked as done.
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1148673: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1148673
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--- Begin Message ---
Source: qtbase-opensource-src
X-Debbugs-CC: [email protected]
Severity: important
Tags: security
Hi,
The following vulnerability was published for qtbase-opensource-src.
CVE-2026-76151[0]:
| Out-of-bounds read (buffer over-read) in the HTTP Cache-Control
| response header parsing in the QtNetwork module in Qt Group Qt 6.0.0
| through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to
| cause a denial of service (application crash) via an excessively
| large Cache-Control header value returned by an untrusted or
| compromised HTTP server to an application using
| QNetworkAccessManager. Only the client side of the connection is
| affected and 32-bit builds are not affected; the out-of-bounds
| access is read-only, with no information disclosure and no code
| execution.
https://codereview.qt-project.org/c/qt/qtbase/+/752129
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2026-76151
https://www.cve.org/CVERecord?id=CVE-2026-76151
Please adjust the affected versions in the BTS as needed.
--- End Message ---
--- Begin Message ---
Am Tue, Sep 22, 2026 at 11:58:38PM +0300 schrieb Dmitry Shachnev:
> Control: tags -1 + moreinfo
>
> Hi Moritz!
>
> On Mon, Sep 21, 2026 at 11:05:22PM +0200, Moritz Mühlenhoff wrote:
> > Source: qtbase-opensource-src
> > X-Debbugs-CC: [email protected]
> > Severity: important
> > Tags: security
> >
> > Hi,
> >
> > The following vulnerability was published for qtbase-opensource-src.
> >
> > CVE-2026-76151[0]:
> > | Out-of-bounds read (buffer over-read) in the HTTP Cache-Control
> > | response header parsing in the QtNetwork module in Qt Group Qt 6.0.0
> > | through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to
> > | cause a denial of service (application crash) via an excessively
> > | large Cache-Control header value returned by an untrusted or
> > | compromised HTTP server to an application using
> > | QNetworkAccessManager. Only the client side of the connection is
> > | affected and 32-bit builds are not affected; the out-of-bounds
> > | access is read-only, with no information disclosure and no code
> > | execution.
> >
> > https://codereview.qt-project.org/c/qt/qtbase/+/752129
>
> Maybe you meant to submit this bug to src:qt6-base?
>
> The description says "Qt 6.0.0 through...", and the linked codereview
> also says "Amends the port of QByteArray to qsizetype (6.0)".
Apologies, I seem to have mixed up two Qt CVEs. This one is specific
to Qt6 indeed. I've updated the Debian Security Tracker as well.
Cheers,
Moritz
--- End Message ---
