Hi Gilles,
So it seems this bug is related to the credcheck extension, updating credcheck to the latest version 4.3.0 did not help,
when removing credcheck extension from the shared_preload_libraries parameter the bug disappears.
I will open a bug request on github for credcheck.
Thank you all very much for your help.
Le 06/01/2026 à 14:58, Andrii a écrit :
Summary
PostgreSQL server crashes with a segmentation fault when executing ALTER USER CURRENT_USER WITH PASSWORD in PostgreSQL 16.10 and 16.11. The crash results in immediate termination of the backend process and forces a full instance restart.
Hi Andril,
I think the problem might comes from the credcheck extension. Please upgrade to version 4.3 of credcheck. Several possible crash have fixed since v3.0.
Best regards.
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Gilles Darold