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Test your applicationsUpgrade RHEL:8 postgresql:12/postgresql-plpython3 to version 0:12.22-1.module+el8.8.0+24047+e7ffc146.3 or higher.
This issue was patched in RHSA-2026:4075.
Note: Versions mentioned in the description apply only to the upstream postgresql:12/postgresql-plpython3 package and not the postgresql:12/postgresql-plpython3 package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.