SABnzbd Releases Version 2.3.3

SABnzbd continues to refine their popular Usenet browser.  The SABnzbd 2.3.3 release includes an update to enforce “host_whitelist” to reject DNS Rebinding attacks. Version 2.3.3 was released a few days ago.  You can choose whether you want to wait for any bugs to be flushed out.  We’re comfortable with SABnzbd releases and this isn’t a beta or RC.  In this case you can expect fewer bugs since it’s a full release. We haven’t heard of any major issues with the yet. As of Thursday afternoon, SABnzbd 2.3.3 has been downloaded 15,636 times.  Those who haven’t tried SABnzbd in the past are welcome to grab the latest release from their downloads page or learn more about the project at

SABnzbd 2.3

SABnzbd is one of our favorite newsreaders along with NZBGet, Newshosting client, Newsbin and NewsLeecher.  All of them do a great job at downloading from Usenet.  If your goal is text newsgroups we would suggest Newsbin.  SABnzbd focuses on binary files.  The open-source client runs as a web server on your system.  You can access it through your favorite web browser.  They have versions available for Windows, Mac and Linux.

Since SABnzbd is open-source and has such a large following you will find a number of cool add-ons and services like CouchPotato, Sick Beard, Sonarr and SABMobile for iOS and Android devices.  Check out the SABnzbd forum to learn more about these add-ons and others available for the client.

Here’s a full list of new features and bug fixes in the SABnzbd 2.3.3 release:

Changes since 2.3.3

  • Introduce and enforce “host_whitelist” to reject DNS Rebinding attacks. If you access SABnzbd from a non-standard URL, you will need to add the hostname. More info:
  • SABYenc updated to 3.3.5 to fix false-positive CRC errors
  • SSL-Ciphers can now be set per-server
  • Failed URL fetches also trigger post-processing script (if configured)
  • Added “maxurlretries” to set maximum retries of URL fetching
  • Added “ignoreemptyfiles” option to not warn on empty files in NZB
  • Added “X-Frame-Options” HTTP-header to prevent click-jacking
  • Added “httpOnly” HTTP-header to prevent script cookie access
  • Extended SAN list of newly generated self-signed certificates
  • Indicate that SMPL-skin is no longer supported
  • Removed undocumented “callback” option from API calls
  • macOS: 64bit version of unrar instead of 32bit
  • Windows: Set process priority of external processes (unpack/repair)
  • Windows: Default external process priority increased to “Normal”

Bugfixes since 2.3.2

  • NZB’s can be added via command-line but this was not shown in “–help”
  • Only show bad-SSL-warning if it was actually tested
  • Language-change via API did not directly change display language
  • Cheetah 3 is also accepted as template engine
  • Correctly indicate that 99 is the maximum server priority
  • Results of unpacked zip/7zip files were not sorted
  • Joining of split files was limited to 999 files
  • Media files with “password” in filename were detected as encrypted
  • Servers that could not be DNS-resolved could block the queue
  • Detect ‘502 Byte limit exceeded’ as payment problem
  • Server load-balancing setting was ignored when testing server
  • Windows: MultiPar checksum errors during repair would result in crash
  • Windows: Update 7zip to 18.01

Upgrading from 2.2.x and older

  • Finish queue
  • Stop SABnzbd
  • Install new version
  • Start SABnzbd

Upgrade notices

  • When upgrading from 2.2.0 or older the queue will be converted. Job order, settings and data will be preserved, but all jobs will be unpaused and URL’s that did not finish fetching before the upgrade will be lost.
  • The organization of the download queue is different from 0.7.x releases. This version will not see the 0.7.x queue, but you can restore the jobs by going to Status page and using Queue Repair.

Who said Usenet isn’t popular?  SABnzbd continues to grow and has now passed 9 million downloads.  Having so many popular extensions integrated with the Usenet browser will only help the project continue to grow.  If you have any questions or need help getting started the SABnzbd team has some nice guides.  The forum is also a great place to ask questions and learn about all the custom add-ons.

Visit Newsgroup Reviews to learn more about Usenet.  Follow us @NewsgroupRevs for the latest news.