Thank you Kamil - that's very thoughtful and nice to see your message back
on the devlist :D

On Wed, Jun 18, 2025 at 7:38 PM Kamil Breguła <dzaku...@gmail.com> wrote:

> I proposed to split the new connexion release into two versions. First
> release one release that supports the new Werkzereg release, and then
> release a new Connexion release that supports Flask 3 only. This is not
> ideal, because Airflow 2 will still be on an unsupported version of
> Connexion, but we will have at least one release that has the new Werkzeug
> version and has a fix for the CVE bug. This might be easier to do, as I
> understand that connexion might not want to support Flask 2 if there is no
> specific end date for when other dependencies will support Flask 3, but it
> may still turn out to be enough for us.
>
> śr., 18 cze 2025 o 08:54 Jarek Potiuk <ja...@potiuk.com> napisał(a):
>
> > I WOULD LIKE TO TAP INTO POWER OF OUR COMMUNITY... PLEASE HELP.
> >
> > We again had another issue with FAB where the root cause was our old
> > Werkzeug version - that we cannot upgrade until now) - old Werkzeug does
> > not support `scrypt` hashing algorithm and latest FAB version defaulted
> > password hashing to scrypt - we have a workaround but we will have to
> make
> > a more complete fix with FAB provider. And I am sure Airflow 2 users will
> > have more and more problems as the time passes.
> >
> > I think there is a **real** chance with the Connexion team working on
> > 2.15.0 - https://pypi.org/project/connexion/2.15.0rc1/  that we can
> > finally
> > get rid of it - in Both Airflow 2 and Airflow 3. But we have one problem
> ->
> > Connexion 2.15.0rc1 seems to require Flask 3 where we cannot upgrade to
> > Flask 3 because of the FAB <3 limit. I started a discussion about it
> here:
> >
> https://github.com/spec-first/connexion/pull/1992#issuecomment-2976706491
> > and explained that it would be great if Connexion 2.15.0 supported still
> > flask 2.
> >
> > And it would be great if more people could support it and explain that
> this
> > would be a major win for the Airflow community if they could relax this.
> >
> > I do not think this is a big problem for them - the explanation we had
> from
> > them is "hey Flask 2 is really old" - but there is no "real" reason.
> > On the other hand migrating FAB to Flask 3 would like be a very complex
> and
> > risky thing (and Daniel already struggles with just SQLalchemy upgrade
> and
> > FAB 5 so it would be too much to put the pressure on him).
> >
> > Can you please help and upvote/comment on
> >
> https://github.com/spec-first/connexion/pull/1992#issuecomment-2976706491
> >
> > I would (and the whole community) really, really appreciate it.
> >
> > J.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Fri, Jun 13, 2025 at 11:16 AM Jarek Potiuk <ja...@potiuk.com> wrote:
> >
> > > Hello everyone,
> > >
> > > As you might know, Airflow 2 has a long-time issue with not being able
> to
> > > upgrade Werkzeug dependency to a non-vulnerable version and that
> raises a
> > > lot of alarms for users who run CVE checks on Airflow.
> > >
> > > We've been waiting for a long time for that - but it looks like there
> is
> > a
> > > light in a tunnel. We have two options that we can attempt:
> > >
> > > 1) Connexion 2.15.0.rc1
> > > 2) Releasing a package that will patch Werkzeug 2.2.3 with backported
> CVE
> > > fixes
> > >
> > > Recently Google team attempted to back-port and test fixes to older
> > > version of Werkzeug and I helped to get through to the maintainers -
> > > https://github.com/pallets/werkzeug/discussions/3034 - however they
> are
> > > not really willing to make that into regular release - reasoning
> > explained
> > > in the discussion.
> > >
> > > However, after many months of discussions and at least 3 attempts to
> bump
> > > dependencies for Connexion - we seem to have an RC candidate (2.15.0rc1
> > > https://pypi.org/project/connexion/2.15.0rc1/) that lifts the limit
> for
> > > Werkzeug (released 4 days ago).
> > >
> > > There were some breaking changes in Werkzeug that made it so long and
> > > difficult but I think we should be able to release a 2.11.1 version of
> > > Airflow with it
> > >
> > > I made  first attempt to migrate - here:
> > > https://github.com/apache/airflow/pull/51681 and while I was able to
> > work
> > > out non-conflicting dependencies and bump Werkzeug, there are some
> things
> > > to be fixed with session handling and there is still one outstanding
> > > problem - FAB requires Flask < 3 and currently Connexion 2.0.15rc1
> > requires
> > > flask >= 3 - which FAB (even upcoming FAB 5) does not support. And
> likely
> > > migrating to Flask 3 is **not** an option for us anyway.
> > >
> > > I started discussion here with those who worked on the Connexion patch
> > for
> > > Werkzeug to see if that is a "hard" limit..:
> > >
> >
> https://github.com/spec-first/connexion/pull/1992#issuecomment-2969565640
> > >
> > > Alternative option - patch package:
> > >
> > > We also have a "last-resort" approach that we are looking at with the
> > > Google team. We might want to release a "werkzeug-patch" package that
> > will
> > > apply the CVE patches to Werkzeug 2.2.3
> > >
> > > Option 1) is not clear yet if it is possible due to Flask 3 / Flask 2
> -
> > > and it would only work for 2.11.1 - we need to make some fixes and
> change
> > > dependencies for Airflow to make it work.
> > >
> > > Option 2) Is hacky (I am talking to Werkzeug maintainers what do they
> > > think about it as we would likely need to have at least a comment in
> the
> > > CVE advisory that this package fixes it as well) . But it has the
> benefit
> > > that it will **just work** by installing the patch on basically all
> past
> > > Airflow versions
> > >
> > > Just wanted to let everyone know it happens and ask if you have any
> > > opinions on those.
> > >
> > > J.
> > >
> >
>

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