PostgreSQL
CVE-2026-120139: Integer wraparound in PostgreSQL in-memory tuple-size calculations allows a database user to execute arbitrary code as the operating system user running the dat
CVE-2026-120139 Nov 12, 2026 Source: Vendor
Integer wraparound in PostgreSQL in-memory tuple-size calculations allows a database user to execute arbitrary code as the operating system user running the database, via oversized tuple data. 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-2026-120139
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CVE-2026-120139
BR2026-0000-047837
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Credited as The PostgreSQL project thanks Hillai Ben Sasson, Jayden Sarveshkumar, and Mehmet Ince for reporting this problem