🛡️ CVE-2026-2003 on Debian — postgresql-13

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2026-2003 as tracked by Debian, for the package postgresql-13. The fix is available in version 13.23-0+deb11u2; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software and timeline

Affected software: postgresql-13 (fixed in 13.23-0+deb11u2), postgresql-15 (fixed in 15.16-0+deb12u1), postgresql-17 (fixed in 17.8-0+deb13u1) and postgresql-18 (fixed in 18.2-1). Published on 12 February 2026 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2026-2003 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-12
Updated 2026-08-11
Modified 2026-08-04
Fix URL N/A

Affected Packages

Software From version Fixed in
postgresql-13 — 13.23-0+deb11u2
postgresql-15 — 15.16-0+deb12u1
postgresql-17 — 17.8-0+deb13u1
postgresql-18 — 18.2-1

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