Solved: Re: upgrading erlang/otp manualy due to reapearing... - Qlik Community

dobak · ‎2026-04-27

Hi. Is it possible to upgrade Erlang/OTP manually or do we have to do it via upgrading Nprinting SR?

Currently Erlang 27.3.4.7 is used in Nprinting February 2025 SR5 but there are 4 more releases of Erlang after this version all fixing some security issue.

Customers use security scans and they are getting alerts all the times.

https://www.erlang.org/patches/OTP-27.3.4.7

Andrea_Bertazzo · ‎2026-04-27

@dobak
I would not upgrade Erlang manually.
Erlang is part of the messaging service and unistalling/upgrading it manually may cause serious problems to the service as happened here.

I would contact Qlik Support and report the vulnerabilities you are concerned about. It is possible that the next version of NPrinting will come with an Erlang upgrade. Qlik Support can confirm this.

Help users find answers! Do not forget to mark a solution that worked for you! If already marked, give it a thumbs up ! 🙂

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Ruggero_Piccoli · ‎2026-05-26

Hi,

Qlik NPrinting May 2026 IR available for download from today has Erlang updated to 27.3.4.11. Release notes at https://community.qlik.com/t5/Release-Notes/Qlik-NPrinting-Release-notes-May-2026-Initial-Release/ta...

Best Regards,

Ruggero

Best Regards,
Ruggero
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Eduardo_Monteiro · ‎2026-04-27

Hi @dobak

I never tried upgrading the current OTP, and I understand it will potentially break the environment, given it's tied to RabbitMQ. I know it's safe to remove older versions(leftovers) after you upgrade NPrinting.

The best approach would be to upgrade NPrinting to the latest SR and the latest release.

Eduardo Monteiro - Senior Support Engineer @ IPC Global
Follow me on my LinkedIn | Know IPC Global at ipc-global.com

Andrea_Bertazzo · ‎2026-04-27

@dobak
I would not upgrade Erlang manually.
Erlang is part of the messaging service and unistalling/upgrading it manually may cause serious problems to the service as happened here.

I would contact Qlik Support and report the vulnerabilities you are concerned about. It is possible that the next version of NPrinting will come with an Erlang upgrade. Qlik Support can confirm this.

Help users find answers! Do not forget to mark a solution that worked for you! If already marked, give it a thumbs up ! 🙂

Ruggero_Piccoli · ‎2026-05-26

Hi,

Qlik NPrinting May 2026 IR available for download from today has Erlang updated to 27.3.4.11. Release notes at https://community.qlik.com/t5/Release-Notes/Qlik-NPrinting-Release-notes-May-2026-Initial-Release/ta...

Best Regards,

Ruggero

Best Regards,
Ruggero
---------------------------------------------
When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.

mikaelsc · ‎2026-07-28

in the meantime there are new (similar?) vulnerabilities.

@Ruggero_Piccoli is there an upcoming patch ?

thanks

Ruggero_Piccoli · ‎2026-07-28

Hi @mikaelsc ,

When you discover a potentially new vulnerability, please send us a support ticket with all details so we can investigate it and evaluate if it impacts on the product.

Best Regards,

Ruggero

Best Regards,
Ruggero
---------------------------------------------
When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.

Ruggero_Piccoli · ‎2026-09-01

Hi @dobak

Follow-up on my previous reply: Erlang has been updated again, and this time on both tracks.

Qlik NPrinting February 2025 SR7 (25.5.23) — Erlang updated to 27.3.4.16
Qlik NPrinting May 2026 SR1 (26.19.5) — Erlang updated to 27.3.4.16

Release notes:

Best Regards,
Ruggero

Best Regards,
Ruggero
---------------------------------------------
When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.

upgrading erlang/otp manualy due to reapearing vulnerabilities

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