UpHeron
All vulnerabilities

Servers and applications

CVE-2026-6476

SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.

Severity
High 7.2
Published
14 May 2026
Last changed
17 Jun 2026
Added to UpHeron
16 Oct 2026
Fixed in
17.10, 18.4
Sources
NVD

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cpe:a:postgresql:postgresql
  • From 17.0 before 17.10
  • From 18.0 before 18.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-6476
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6476