PostgreSQL
CVE-2026-120147: Use after free in the PostgreSQL dblink extension allows an object creator to execute arbitrary code as the operating system user running the database, via type
CVE-2026-120147 Nov 12, 2026 Source: Vendor
Use after free in the PostgreSQL dblink extension allows an object creator to execute arbitrary code as the operating system user running the database, via type conversion code that re-enters dblink and closes a connection whose results an outer dblink call is reading. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-120147
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CVE-2026-120147
BR2026-0000-047844
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Credited as The PostgreSQL project thanks 안지용 for reporting this problem