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CVE-2026-120144

PostgreSQL type-cache invalidation gap executes arbitrary code

Severity
High 8.8
Published
12 Nov 2026
Last changed
13 Nov 2026
Added to UpHeron
13 Nov 2026
Fixed in
18.7
Weakness
CWE-843
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Sources
CVE Program

Description

Type confusion from incomplete PostgreSQL type-cache invalidation allows an object creator to execute arbitrary code as the operating system user running the database, via a composite type change while its cache entry is being populated. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.

From the CVE Program.

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cna:n/a|postgresql
  • From 18 before 18.7

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-120144