CVE-2026-2003

PostgreSQL oidvector discloses a few bytes of memory

At a glance

Severity
MEDIUM 4.3
EPSS
EPSS 0.32 % · percentile 25 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
PostgreSQL
NVD status
Analyzed

Description

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.

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NPostgreSQL
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NNVD · f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (Secondary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
PostgreSQLaffected 18 < 18.2 ; affected 17 < 17.8 ; affected 16 < 16.12 ; affected 15 < 15.16 ; affected 0 < 14.21

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD