UpHeron
All vulnerabilities

Servers and applications

CVE-2026-2003

Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Severity
Medium 4.3
Published
12 Feb 2026
Last changed
17 Jun 2026
Added to UpHeron
16 Oct 2026
Fixed in
14.21, 15.16, 16.12, 17.8, 18.2
Sources
NVD

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cpe:a:postgresql:postgresql
  • From 14.0 before 14.21
  • From 15.0 before 15.16
  • From 16.0 before 16.12
  • From 17.0 before 17.8
  • From 18.0 before 18.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-2003
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-2003