Nicotine+ is a graphical client for the Soulseek peer-to-peer network. Prior to version 3.3.11, a modified remote client can send zlib-compressed peer messages containing a decompression bomb, exhausting available memory of the recipient's operating system. This issue has been patched in version 3.3.11.

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-4b6e8bed0f advisory.

    ## Version 3.3.11 (September 16, 2026)

    ### Changes

     * Added menu items for moving column headers due to broken drag-and-drop in GTK
     * Enabled fixed number of upload slots by default
     * Show global recommendations for interests when no personalized ones are available
     * Only show online status of open chat history users to reduce server traffic
     * Expire cached user IP addresses after 30 minutes at the latest
     * Removed 'Everyone' permission for receiving files sent via manual upload
     * Removed automatic port forwarding from isolated mode (Docker containers)

    ### Corrections

     * Important: Prevent unbounded memory use for large uncompressed network messages
     * Important: Prevent file uploads from going through to spoofed users
     * Important: Added rate limits for CTCP messages
     * Important: Fixed a rare shares database corruption due to similar file names
     * Important: Fixed an issue where peers would sometimes receive the wrong username
     * Important: Fixed some incorrect behavior in the distributed search network
     * Fixed a crash when searching for room files with no chatroom specified
     * Fixed a rare crash when opening File Properties dialog
     * Fixed rare crashes when starting/quitting the application
     * Fixed broken Add Buddy text entry in the buddies sidebar
     * Fixed configuration files not being saved when restarting or logging out
     * Fixed upload removals when banning an IP address from the Preferences dialog
     * Fixed loading a saved shares file list from disk while offline
     * Fixed shares not always rescanning on startup when databases were missing/corrupted
     * Fixed folder downloads adding files from other users with identical folder paths
     * Fixed incorrect average transfer speed when uploading the same file many times
     * Fixed transfer list not always updating fully until switching to another tab
     * Fixed zero-byte downloads not finishing immediately
     * Fixed an issue where the first connection to the server could fail
     * Fixed occasional performance issues when responding to search requests
     * Fixed incorrect sort order in file lists in some cases
     * Fixed inaccurate stuck current folder count during rescan
     * Fixed missing shared file count for users with no shared files
     * Fixed issues reading audio properties for some files when rescanning shares
     * Fixed tabs unexpectedly being marked as read when scrolling through them
     * Fixed room list order sometimes changing after restarting
     * Fixed removed private rooms not being fully cleaned from lists until reconnecting
     * Fixed long usernames not being ellipsized in private chat tabs
     * Fixed minor sizing issues with pages context menu on some systems
     * Fixed cosmetic issue with invalid folder paths in folder chooser button
     * Removed 'Insert Emoji' menu item from text entries that don't accept emoji


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-843c104a8c advisory.

    ## Version 3.3.11 (September 16, 2026)

    ### Changes

     * Added menu items for moving column headers due to broken drag-and-drop in GTK
     * Enabled fixed number of upload slots by default
     * Show global recommendations for interests when no personalized ones are available
     * Only show online status of open chat history users to reduce server traffic
     * Expire cached user IP addresses after 30 minutes at the latest
     * Removed 'Everyone' permission for receiving files sent via manual upload
     * Removed automatic port forwarding from isolated mode (Docker containers)

    ### Corrections

     * Important: Prevent unbounded memory use for large uncompressed network messages
     * Important: Prevent file uploads from going through to spoofed users
     * Important: Added rate limits for CTCP messages
     * Important: Fixed a rare shares database corruption due to similar file names
     * Important: Fixed an issue where peers would sometimes receive the wrong username
     * Important: Fixed some incorrect behavior in the distributed search network
     * Fixed a crash when searching for room files with no chatroom specified
     * Fixed a rare crash when opening File Properties dialog
     * Fixed rare crashes when starting/quitting the application
     * Fixed broken Add Buddy text entry in the buddies sidebar
     * Fixed configuration files not being saved when restarting or logging out
     * Fixed upload removals when banning an IP address from the Preferences dialog
     * Fixed loading a saved shares file list from disk while offline
     * Fixed shares not always rescanning on startup when databases were missing/corrupted
     * Fixed folder downloads adding files from other users with identical folder paths
     * Fixed incorrect average transfer speed when uploading the same file many times
     * Fixed transfer list not always updating fully until switching to another tab
     * Fixed zero-byte downloads not finishing immediately
     * Fixed an issue where the first connection to the server could fail
     * Fixed occasional performance issues when responding to search requests
     * Fixed incorrect sort order in file lists in some cases
     * Fixed inaccurate stuck current folder count during rescan
     * Fixed missing shared file count for users with no shared files
     * Fixed issues reading audio properties for some files when rescanning shares
     * Fixed tabs unexpectedly being marked as read when scrolling through them
     * Fixed room list order sometimes changing after restarting
     * Fixed removed private rooms not being fully cleaned from lists until reconnecting
     * Fixed long usernames not being ellipsized in private chat tabs
     * Fixed minor sizing issues with pages context menu on some systems
     * Fixed cosmetic issue with invalid folder paths in folder chooser button
     * Removed 'Insert Emoji' menu item from text entries that don't accept emoji


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-5524bd90b2 advisory.

    ## Version 3.3.11 (September 16, 2026)

    ### Changes

     * Added menu items for moving column headers due to broken drag-and-drop in GTK
     * Enabled fixed number of upload slots by default
     * Show global recommendations for interests when no personalized ones are available
     * Only show online status of open chat history users to reduce server traffic
     * Expire cached user IP addresses after 30 minutes at the latest
     * Removed 'Everyone' permission for receiving files sent via manual upload
     * Removed automatic port forwarding from isolated mode (Docker containers)

    ### Corrections

     * Important: Prevent unbounded memory use for large uncompressed network messages
     * Important: Prevent file uploads from going through to spoofed users
     * Important: Added rate limits for CTCP messages
     * Important: Fixed a rare shares database corruption due to similar file names
     * Important: Fixed an issue where peers would sometimes receive the wrong username
     * Important: Fixed some incorrect behavior in the distributed search network
     * Fixed a crash when searching for room files with no chatroom specified
     * Fixed a rare crash when opening File Properties dialog
     * Fixed rare crashes when starting/quitting the application
     * Fixed broken Add Buddy text entry in the buddies sidebar
     * Fixed configuration files not being saved when restarting or logging out
     * Fixed upload removals when banning an IP address from the Preferences dialog
     * Fixed loading a saved shares file list from disk while offline
     * Fixed shares not always rescanning on startup when databases were missing/corrupted
     * Fixed folder downloads adding files from other users with identical folder paths
     * Fixed incorrect average transfer speed when uploading the same file many times
     * Fixed transfer list not always updating fully until switching to another tab
     * Fixed zero-byte downloads not finishing immediately
     * Fixed an issue where the first connection to the server could fail
     * Fixed occasional performance issues when responding to search requests
     * Fixed incorrect sort order in file lists in some cases
     * Fixed inaccurate stuck current folder count during rescan
     * Fixed missing shared file count for users with no shared files
     * Fixed issues reading audio properties for some files when rescanning shares
     * Fixed tabs unexpectedly being marked as read when scrolling through them
     * Fixed room list order sometimes changing after restarting
     * Fixed removed private rooms not being fully cleaned from lists until reconnecting
     * Fixed long usernames not being ellipsized in private chat tabs
     * Fixed minor sizing issues with pages context menu on some systems
     * Fixed cosmetic issue with invalid folder paths in folder chooser button
     * Removed 'Insert Emoji' menu item from text entries that don't accept emoji


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
374738	Fedora 45 : nicotine+ (2026-4b6e8bed0f)	Nessus	Fedora Local Security Checks	Local	high
370295	Fedora 43 : nicotine+ (2026-843c104a8c)	Nessus	Fedora Local Security Checks	Local	high
369952	Fedora 44 : nicotine+ (2026-5524bd90b2)	Nessus	Fedora Local Security Checks	Local	high

Detections

Analytics

CVE-2026-68911

high

Tenable Plugins

high

high

high