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    <title>Most recent entries from all</title>
    <link>https://cve.radiocsirt.org</link>
    <description>Contains only the most 10 recent entries.</description>
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    <lastBuildDate>Sun, 04 Oct 2026 09:05:34 +0000</lastBuildDate>
    <item>
      <title>CLEANSTART-2024-PO02295 — Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux</title>
      <link>https://cve.radiocsirt.org/vuln/cleanstart-2024-po02295</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CleanStart: flatpak&lt;/p&gt;
&lt;p&gt;Security vulnerability affects the flatpak package. Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CleanStart: flatpak&lt;/p&gt;
&lt;p&gt;Security vulnerability affects the flatpak package. Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cleanstart-2024-po02295</guid>
    </item>
    <item>
      <title>cnvd-2021-03542</title>
      <link>https://cve.radiocsirt.org/vuln/cnvd-2021-03542</link>
      <description>cnvd-2021-03542</description>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cnvd-2021-03542</guid>
    </item>
    <item>
      <title>EUVD-2026-22068</title>
      <link>https://cve.radiocsirt.org/vuln/euvd-2026-22068</link>
      <description>EUVD-2026-22068</description>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/euvd-2026-22068</guid>
    </item>
    <item>
      <title>fkie_cve-2021-21261</title>
      <link>https://cve.radiocsirt.org/vuln/fkie_cve-2021-21261</link>
      <description>&lt;p&gt;Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.10.0. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox. As a workaround, this vulnerability can be mitigated by preventing the `flatpak-portal` service from starting, but that mitigation will prevent many Flatpak apps from working correctl…&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.10.0. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox. As a workaround, this vulnerability can be mitigated by preventing the `flatpak-portal` service from starting, but that mitigation will prevent many Flatpak apps from working correctl…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/fkie_cve-2021-21261</guid>
    </item>
    <item>
      <title>gsd-2021-21261</title>
      <link>https://cve.radiocsirt.org/vuln/gsd-2021-21261</link>
      <description>gsd-2021-21261</description>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/gsd-2021-21261</guid>
    </item>
    <item>
      <title>OESA-2021-1043 — flatpak security update</title>
      <link>https://cve.radiocsirt.org/vuln/oesa-2021-1043</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; openEuler:20.03-LTS: flatpak, openEuler:20.03-LTS-SP1: flatpak&lt;/p&gt;
&lt;p&gt;flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information.&#13;
&#13;
Security Fix(es):&#13;
&#13;
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.9.4. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in…&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; openEuler:20.03-LTS: flatpak, openEuler:20.03-LTS-SP1: flatpak&lt;/p&gt;
&lt;p&gt;flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information.&#13;
&#13;
Security Fix(es):&#13;
&#13;
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.9.4. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/oesa-2021-1043</guid>
    </item>
    <item>
      <title>openSUSE-SU-2021:0520-1 — Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk</title>
      <link>https://cve.radiocsirt.org/vuln/opensuse-su-2021:0520-1</link>
      <description>&lt;p&gt;Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/opensuse-su-2021:0520-1</guid>
    </item>
    <item>
      <title>RHSA-2021:0306 — Red Hat Security Advisory: flatpak security update</title>
      <link>https://cve.radiocsirt.org/vuln/rhsa-2021:0306</link>
      <description>&lt;p&gt;flatpak: sandbox escape via spawn portal&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;flatpak: sandbox escape via spawn portal&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/rhsa-2021:0306</guid>
    </item>
    <item>
      <title>SUSE-SU-2021:1094-1 — Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk</title>
      <link>https://cve.radiocsirt.org/vuln/suse-su-2021:1094-1</link>
      <description>&lt;p&gt;Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;Security update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/suse-su-2021:1094-1</guid>
    </item>
    <item>
      <title>UBUNTU-CVE-2021-21261</title>
      <link>https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-21261</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:18.04:LTS: flatpak, Ubuntu:20.04:LTS: flatpak&lt;/p&gt;
&lt;p&gt;Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.10.0. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox. As a workaround, this vulnerability can be mitigated by preventing the `flatpak-portal` service from starting, but that mitigation will prevent many Flatpak apps from working correctl…&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Ubuntu:18.04:LTS: flatpak, Ubuntu:20.04:LTS: flatpak&lt;/p&gt;
&lt;p&gt;Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the `flatpak-portal` service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.10.0. The Flatpak portal D-Bus service (`flatpak-portal`, also known by its D-Bus service name `org.freedesktop.portal.Flatpak`) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox. As a workaround, this vulnerability can be mitigated by preventing the `flatpak-portal` service from starting, but that mitigation will prevent many Flatpak apps from working correctl…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-21261</guid>
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