CVE-2026-120139
PostgreSQL tuple-size integer wraparound executes arbitrary code
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-190 |
| Vendor | n/a |
| Product | postgresql |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / PostgreSQL
18 < 18.7 17 < 17.12 16 < 16.16 15 < 15.20 0 < 14.25
References
Credits
The PostgreSQL project thanks Hillai Ben Sasson, Jayden Sarveshkumar, and Mehmet Ince for reporting this problem.