OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

SummaryOnionShare CLI/Desktop 2.6.3 can follow symbolic links inside a selected Share or Website directory and serve the symlink target rather than limiting access to files physically contained in the selected directory. If a user shares a directory that contains attacker-supplied or otherwise...

CVE-2026-54706

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

UBUNTU-CVE-2026-54706

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

Summary OnionShare CLI/Desktop 2.6.3 can follow symbolic links inside a selected Share or Website directory and serve the symlink target rather than limiting access to files physically contained in the selected directory. If a user shares a directory that contains attacker-supplied or otherwise...

GHSA-22P9-R2F5-22MF OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

Summary OnionShare CLI/Desktop 2.6.3 can follow symbolic links inside a selected Share or Website directory and serve the symlink target rather than limiting access to files physically contained in the selected directory. If a user shares a directory that contains attacker-supplied or otherwise...

CVE-2026-54706 OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

CVE-2026-54706

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

CVE-2026-54706

CVE-2026-54706 affects OnionShare prior to version 2.6.4. The issue arises when OnionShare follows symbolic links in shared directories via cli/onionshare_cli/web/send_base_mode.py in SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode...

CVE-2026-54706 OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

CVE-2026-54706 OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

EUVD-2026-51571

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionsharecli/web/sendbasemode.py through SendBaseModeWeb.setfileinfo and...

CVE-2026-64615 Data::Graph::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

Data::Graph::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in graph.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

PT-2026-52542

Seahub before 13.0.23 does not enforce SHARE LINK LOGIN REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory...

Linux Distros Unpatched Vulnerability : CVE-2020-27216

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru 10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the system's...

PT-2025-23640

Name of the Vulnerable Software and Affected Versions Jupyter Core versions prior to 5.8.0 Description The issue affects Jupyter Core on Windows, where the shared %PROGRAMDATA% directory is searched for configuration files, potentially allowing users to create files that impact other users. This ...

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.

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USN-6899-1: GTK vulnerability

It was discovered that GTK would attempt to load modules from the current directory, contrary to expectations. If users started GTK applications from shared directories, a local attacker could use this issue to execute arbitrary code, and possibly escalate privileges...

AZL-10763 CVE-2022-0358 affecting package qemu for versions less than 6.2.0-5

A flaw was found in the QEMU virtio-fs shared file system daemon virtiofsd implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certa...

CVE-2022-0358

A flaw was found in the QEMU virtio-fs shared file system daemon virtiofsd implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certa...

workflow-cps: OS command execution through crafted SCM contents

A flaw was found in Jenkins. The Pipeline: Groovy Plugin uses the same checkout directories for distinct SCMs when reading the script file typically Jenkinsfile for Pipelines. This flaw allows attackers with item/configure permission to invoke arbitrary OS commands on the controller through craft...