UpHeron
All vulnerabilities

Servers and applications

CVE-2026-120152

PostgreSQL pg_show_all_settings() use-after-free discloses memory

Severity
Medium 4.3
Published
12 Nov 2026
Last changed
12 Nov 2026
Added to UpHeron
13 Nov 2026
Fixed in
16.16, 17.12, 18.7
Weakness
Use after free (CWE-416)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read some data
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Sources
CVE Program

Description

Use after free in PostgreSQL pg_show_all_settings() allows a database user to retrieve memory contents, via loading a module while the function is scanning custom-variable placeholders that the module replaces and frees. Within major versions 16-18, minor versions before PostgreSQL 18.7, 17.12, and 16.16 are affected. Versions before PostgreSQL 16 are unaffected.

From the CVE Program.

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cna:n/a|postgresql
  • From 16 before 16.16
  • From 17 before 17.12
  • From 18 before 18.7

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-120152