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Servers and applications

CVE-2026-116310

PostgreSQL COPY error context uses freed field storage

Severity
Medium 4.3
Published
12 Nov 2026
Last changed
12 Nov 2026
Added to UpHeron
13 Nov 2026
Fixed in
17.12, 18.7
Exploit chance
0.3% in the next 30 daysHigher than 22% of CVEs. EPSS by FIRST, 13 Nov 2026
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 COPY FROM error reporting allows a database user to disclose portions of server memory, via a longer input row following an ignored or nullified conversion error. file_fdw reaches the same code path in affected version 18. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.

From the CVE Program.

Affected software

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

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-116310