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PostgreSQL missing validation of multibyte character length executes arbitrary code

PostgreSQL · CVE-2026-2006
0 news outlets0 CERTs and agencies0 researchers

What is it?

Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices 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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
8.8
EPSS
1.2%
First seen
7 d ago
Status
corroborated

All PostgreSQL vulnerabilities