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From: &quot;Nathan A. Stine&quot; &lt;nathan.stine@gmail.com&gt;
To: Debian Bug Tracking System &lt;submit@bugs.debian.org&gt;
Subject: libwebkitgtk-6.0-4: Some web pages will not render/locks up browser
 after updating to 2.52.3-2~deb13u1
Message-ID: &lt;177793060692.657230.5963636670690986160.reportbug@pc-790.stinenet&gt;
X-Mailer: reportbug 13.2.0
Date: Mon, 04 May 2026 17:36:46 -0400
Delivered-To: submit@bugs.debian.org

Package: libwebkitgtk-6.0-4
Version: 2.52.3-2~deb13u1
Severity: normal
X-Debbugs-Cc: nathan.stine@gmail.com, team@security.debian.org

Dear Maintainer,

After upgrading to 2.52.3-2~deb13u1, I have found that browsing to
https://bsky.app in epiphany-browser will fail to render any of the posts.
After a while the browser will say the page is unresponsive. When viewing
Bluesky posts through gnome-feeds *some* posts will render, others will not. It
seems that having an image in the post causes the same behavior as in
Epiphany/Web.

When this bug occurs, WebKitWebProcess will peg one of my cores to 100%.

Reverting to 2.50.4-1~deb13u1 fixes the issue.


-- System Information:
Debian Release: 13.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.85+deb13-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libwebkitgtk-6.0-4 depends on:
ii  bubblewrap                      0.11.0-2
ii  gstreamer1.0-plugins-base       1.26.2-1+deb13u1
ii  gstreamer1.0-plugins-good       1.26.2-1
ii  libatomic1                      14.2.0-19
ii  libavif16                       1.2.1-1.2
ii  libc6                           2.41-12+deb13u2
ii  libcairo-gobject2               1.18.4-1+b1
ii  libcairo2                       1.18.4-1+b1
ii  libdrm2                         2.4.124-2
ii  libenchant-2-2                  2.8.2+dfsg1-3
ii  libepoxy0                       1.5.10-2
ii  libexpat1                       2.7.1-2
ii  libflite1                       2.2-7
ii  libfontconfig1                  2.15.0-2.3
ii  libfreetype6                    2.13.3+dfsg-1+deb13u1
ii  libgbm1                         25.0.7-2
ii  libgcc-s1                       14.2.0-19
ii  libgcrypt20                     1.11.0-7
ii  libgdk-pixbuf-2.0-0             2.42.12+dfsg-4+deb13u1
ii  libgles2                        1.7.0-1+b2
ii  libglib2.0-0t64                 2.84.4-3~deb13u2
ii  libgpg-error0                   1.51-4
ii  libgraphene-1.0-0               1.10.8-5
ii  libgstreamer-gl1.0-0            1.26.2-1+deb13u1
ii  libgstreamer-plugins-base1.0-0  1.26.2-1+deb13u1
ii  libgstreamer1.0-0               1.26.2-2
ii  libgtk-4-1                      4.18.6+ds-2
ii  libharfbuzz-icu0                10.2.0-1+b1
ii  libharfbuzz0b                   10.2.0-1+b1
ii  libhyphen0                      2.8.8-7+b2
ii  libicu76                        76.1-4
ii  libjavascriptcoregtk-6.0-1      2.52.3-2~deb13u1
ii  libjpeg62-turbo                 1:2.1.5-4
ii  libjxl0.11                      0.11.1-4
ii  liblcms2-2                      2.16-2
ii  libmanette-0.2-0                0.2.12-1
ii  libpango-1.0-0                  1.56.3-1
ii  libpangocairo-1.0-0             1.56.3-1
ii  libpng16-16t64                  1.6.48-1+deb13u4
ii  libseccomp2                     2.6.0-2
ii  libsecret-1-0                   0.21.7-1
ii  libsoup-3.0-0                   3.6.5-3
ii  libsqlite3-0                    3.46.1-7+deb13u1
ii  libstdc++6                      14.2.0-19
ii  libsystemd0                     257.9-1~deb13u1
ii  libtasn1-6                      4.20.0-2
ii  libvulkan1                      1.4.309.0-1
ii  libwayland-client0              1.23.1-3
ii  libwayland-egl1                 1.23.1-3
ii  libwayland-server0              1.23.1-3
ii  libwebp7                        1.5.0-0.1
ii  libwebpdemux2                   1.5.0-0.1
ii  libwebpmux3                     1.5.0-0.1
ii  libx11-6                        2:1.8.12-1
ii  libxml2                         2.12.7+dfsg+really2.9.14-2.1+deb13u2
ii  libxslt1.1                      1.1.35-1.2+deb13u2
ii  xdg-dbus-proxy                  0.1.6-1+deb13u1
ii  zlib1g                          1:1.3.dfsg+really1.3.1-1+b1

Versions of packages libwebkitgtk-6.0-4 recommends:
ii  gstreamer1.0-gl           1.26.2-1+deb13u1
ii  gstreamer1.0-libav        1.26.2-1
ii  gstreamer1.0-plugins-bad  1.26.2-3+deb13u1
ii  libgl1-mesa-dri           25.0.7-2
ii  xdg-desktop-portal-gtk    1.15.3-1

Versions of packages libwebkitgtk-6.0-4 suggests:
pn  gstreamer1.0-alsa  &lt;none&gt;

-- no debconf information
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