Comment # 19 on bug 1215463 from Bit Juggler

(In reply to Larry Finger from comment #16)
> The fix for Tumbleweed hosts is in the pipeline. In fact, the update was
> released to Staging I at about 1900 UTC today. Once a fix reaches staging,
> it usually appears in TW within 2-3 days. To get it immediately, download
> virtualbox-kmp-default-7.0.10_k6.5.4_1-Virt.1699.718.3.x86_64.rpm from
> https://build.opensuse.org/projects/Virtualization/packages/virtualbox:kmp/
> repositories/openSUSE_Tumbleweed/binaries and install it manually with 'sudo
> zypper in --force virtualbox-kmp-default...". Neither the package not the
> modules will be signed, thus they will not work with secure boot, and you
> will need to be running kernel 6.5.4.

I installed the package mentioned above in my openSUSE Tumbleweed 20230921
(host and guest) and can confirm that now it is possible again to access and
use the shared folder in the guest.

Thank you very much for your prompt reaction and all your efforts !