Skip to content
Fencer Vulns
medium 4.3

CVE-2026-2003 json

PostgreSQL oidvector discloses a few bytes of memory

published 2026-02-12 8 mo ago modified 2026-09-08 2 mo ago also BIT-postgresql-2026-2003 , EUVD-2026-7039 , JLSEC-2026-53

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami postgresql 14.21.0, 15.16.0, 16.12.0, 17.8.0, 18.2.0
  • julia LibPQ_jll 16.13.0+0
  • n/a PostgreSQL 14.21, 15.16, 16.12, 17.8, 18.2
  • postgresql-15 Debian 12 15.16-0+deb12u1
  • postgresql-17 Debian 13 17.8-0+deb13u1
  • postgresql-18 Debian 14 18.2-1

debian advisories DEBIAN-CVE-2026-2003

  • postgresql-14 Ubuntu 22.04 LTS 14.22-0ubuntu0.22.04.1
  • postgresql-16 Ubuntu 24.04 LTS 16.13-0ubuntu0.24.04.1
  • postgresql-17 Ubuntu 25.10 17.9-0ubuntu0.25.10.1

ubuntu advisories UBUNTU-CVE-2026-2003

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • postgresql18 RHEL 10.2 18.3-1.el10_2
  • postgresql18-test RHEL 10.2 18.3-1.el10_2
  • postgresql18-plperl RHEL 10.2 18.3-1.el10_2
  • postgresql18-server RHEL 10.2 18.3-1.el10_2
  • postgresql18-contrib RHEL 10.2 18.3-1.el10_2
  • postgresql18-upgrade RHEL 10.2 18.3-1.el10_2
  • postgresql18-plpython3 RHEL 10.2 18.3-1.el10_2
  • postgresql18-private-libs RHEL 10.2 18.3-1.el10_2

red hat advisories RHSA-2026:19009RHSA-2026:19010RHSA-2026:8756RHSA-2026:4548RHSA-2026:4546RHSA-2026:4547

  • postgresql16 SLES for SAP applications 16.0, SLES 16.0 16.13-160000.1.1
  • postgresql18 SLES for SAP applications 16.0, SLES 16.0 18.3-160000.1.1
  • postgresql17 SLES for SAP applications 16.0, SLES 16.0 17.9-160000.1.1
  • postgresql17 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Server Applications 15 SP7 +3 more 17.9-150600.13.24.1
  • postgresql16 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Server Applications 15 SP7 +3 more 16.13-150600.16.30.1
  • postgresql18 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Server Applications 15 SP7 +3 more 18.3-150600.13.8.1
  • postgresql14 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Package Hub 15 SP7 +2 more 14.22-150600.16.28.1
  • postgresql15 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Legacy 15 SP7 +1 more 15.17-150600.16.28.1

suse advisories SUSE-SU-2026:20983-1SUSE-SU-2026:20921-1SUSE-SU-2026:20906-1SUSE-SU-2026:0883-1SUSE-SU-2026:0882-1SUSE-SU-2026:0881-1

  • postgresql16 openSUSE Leap 16.0 16.13-160000.1.1
  • postgresql18 openSUSE Leap 16.0 18.3-160000.1.1
  • postgresql18-mini openSUSE Leap 16.0 18.3-160000.1.1
  • postgresql17 openSUSE Leap 16.0 17.9-160000.1.1
  • postgresql15 openSUSE Leap 16.0 15.16-160000.1.1
  • postgresql14 openSUSE Leap 16.0 14.21-160000.1.1
  • postgresql18 openSUSE Tumbleweed 18.2-1.1
  • postgresql14 openSUSE Tumbleweed 14.21-1.1

opensuse advisories openSUSE-SU-2026:20447-1openSUSE-SU-2026:20408-1openSUSE-SU-2026:20388-1openSUSE-SU-2026:20266-1openSUSE-SU-2026:20265-1openSUSE-SU-2026:10197-1

  • postgresql18 AlmaLinux 10 18.3-1.el10_2
  • postgresql18-test AlmaLinux 10 18.3-1.el10_2
  • postgresql18-plperl AlmaLinux 10 18.3-1.el10_2
  • postgresql18-server AlmaLinux 10 18.3-1.el10_2
  • postgresql18-contrib AlmaLinux 10 18.3-1.el10_2
  • postgresql18-upgrade AlmaLinux 10 18.3-1.el10_2
  • postgresql18-plpython3 AlmaLinux 10 18.3-1.el10_2
  • postgresql18-private-libs AlmaLinux 10 18.3-1.el10_2

almalinux advisories ALSA-2026:19009ALSA-2026:19010ALSA-2026:4059ALSA-2026:4063ALSA-2026:4110ALSA-2026:3896

  • postgresql18 Rocky Linux 10 18.3-1.el10
  • postgresql16 Rocky Linux 10 16.13-1.el10_1
  • pgaudit Rocky Linux 9 16.0-1.module+el9.7.0+40060+39463e08
  • pgaudit Rocky Linux 9 16.0-1.module+el9.7.0+40012+a654bbaa
  • postgis Rocky Linux 9 3.5.3-3.module+el9.7.0+40012+a654bbaa
  • pgvector Rocky Linux 9 0.6.2-2.module+el9.7.0+40060+39463e08
  • pgvector Rocky Linux 9 0.6.2-2.module+el9.7.0+40012+a654bbaa
  • pg_repack Rocky Linux 9 1.5.1-1.module+el9.7.0+40012+a654bbaa

rocky linux advisories RLSA-2026:19009RLSA-2026:19010RLSA-2026:4110

  • postgresql15 Alpine 3.22, Alpine 3.20 15.16-r0
  • postgresql16 Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 16.12-r0
  • postgresql17 Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 17.8-r0
  • postgresql18 Alpine 3.24, Alpine 3.23 18.2-r0

alpine advisories ALPINE-CVE-2026-2003

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • postgresql Azure Linux 3.0 16.12-1
  • postgresql CBL-Mariner 2.0 14.21-1

azure linux advisories AZL-77420AZL-77580

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-2003 updated cvss 4.3

postgresql: PostgreSQL oidvector discloses a few bytes of memory

  • Red Hat Enterprise Linux 6 postgresql, postgresql-libs, postgresql-test, postgresql-pltcl, postgresql-plperl, postgresql-server, +2 more Red Hat Enterprise Linux 7 postgresql, postgresql-libs, postgresql-test, postgresql-pltcl, postgresql-plperl, postgresql-server, +3 more Red Hat Enterprise Linux 8 pgaudit, pg_repack, postgresql, postgresql-test, postgresql-pltcl, postgresql-plperl, +7 more Red Hat Enterprise Linux 9 postgresql, postgresql-test, postgresql-pltcl, postgresql-plperl, postgresql-server, postgresql-contrib, +4 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 8) pgaudit 1.7.0-1.module+el8.9.0+19797+c4ce5969, pgaudit 16.0-1.module+el8.10.0+20413+d8116364, pg_repack 1.4.8-1.module+el8.9.0+19797+c4ce5969, pg_repack 1.5.1-1.module+el8.10.0+22551+c0330dc9, postgresql 15.17-1.module+el8.10.0+24043+d28c3b3f, postgresql 16.13-1.module+el8.10.0+24044+3710dd58, +20 more
    fixed: vendor fix RHSA-2026:4059
  • Red Hat Enterprise Linux AppStream (v. 9) postgresql 13.23-2.el9_7, postgresql-pltcl 13.23-2.el9_7, postgresql-plperl 13.23-2.el9_7, postgresql-server 13.23-2.el9_7, postgresql-contrib 13.23-2.el9_7, postgresql-upgrade 13.23-2.el9_7, +33 more
    fixed: vendor fix RHSA-2026:3896
  • Red Hat Enterprise Linux AppStream (v. 10) postgresql 16.13-1.el10_1, postgresql 16.13-1.el10_2, postgresql18 18.3-1.el10_2, postgresql16 16.13-1.el10_1, postgresql16 16.13-1.el10_2, postgresql-test 16.13-1.el10_1, +22 more
    fixed: vendor fix RHSA-2026:3887
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) pgaudit 1.7.0-1.module+el8.8.0+17071+aaaceaa4, pg_repack 1.4.8-1.module+el8.8.0+17071+aaaceaa4, postgresql 15.17-1.module+el8.8.0+24064+070714b8, postgresql-test 15.17-1.module+el8.8.0+24064+070714b8, postgresql-pltcl 15.17-1.module+el8.8.0+24064+070714b8, postgresql-plperl 15.17-1.module+el8.8.0+24064+070714b8, +7 more
    fixed: vendor fix RHSA-2026:4515
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) pgaudit 1.7.0-1.module+el9.2.0+17405+aeb9ec60, pg_repack 1.4.8-1.module+el9.2.0+17405+aeb9ec60, postgresql 15.17-1.module+el9.2.0+24076+9f04ec7d, postgresql-test 15.17-1.module+el9.2.0+24076+9f04ec7d, postgresql-pltcl 15.17-1.module+el9.2.0+24076+9f04ec7d, postgresql-plperl 15.17-1.module+el9.2.0+24076+9f04ec7d, +7 more
    fixed: vendor fix RHSA-2026:4254
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) postgresql 16.13-1.el10_0, postgresql16 16.13-1.el10_0, postgresql-test 16.13-1.el10_0, postgresql-pltcl 16.13-1.el10_0, postgresql-plperl 16.13-1.el10_0, postgresql-server 16.13-1.el10_0, +4 more
    fixed: vendor fix RHSA-2026:4441
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) pgaudit 16.0-1.module+el9.4.0+20427+07482b8c, pgaudit 1.7.0-1.module+el9.2.0+17405+aeb9ec60, pg_repack 1.4.8-1.module+el9.2.0+17405+aeb9ec60, pg_repack 1.4.8-1.module+el9.4.0+20427+07482b8c, postgresql 15.17-1.module+el9.4.0+24062+0e16bfab, postgresql 16.13-1.module+el9.4.0+24065+759b8157, +20 more
    fixed: vendor fix RHSA-2026:4548
show 7 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) pgaudit 16.0-1.module+el9.4.0+20427+07482b8c, pgaudit 1.7.0-1.module+el9.2.0+17405+aeb9ec60, pgvector 0.6.2-2.module+el9.6.0+22979+c3d78d52, pg_repack 1.4.8-2.module+el9.5.0+22224+f5585c78, pg_repack 1.5.1-1.module+el9.6.0+22880+6b241eec, postgresql 15.17-1.module+el9.6.0+24075+d1e73d59, +21 more
    fixed: vendor fix RHSA-2026:4546
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) postgresql-test 13.23-2.el9_7, postgresql-test-rpm-macros 13.23-2.el9_7
    fixed: vendor fix RHSA-2026:3730
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql-test-rpm-macros 16.13-1.el10_1, postgresql-test-rpm-macros 16.13-1.el10_2, postgresql18-test-rpm-macros 18.3-1.el10_2
    fixed: vendor fix RHSA-2026:3887
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) postgresql-test-rpm-macros 16.13-1.el10_0
    fixed: vendor fix RHSA-2026:4441
  • Red Hat Hardened Images postgresql18 18.3-1.2.hum1
    fixed: vendor fix RHSA-2026:8756
  • Red Hat Update Infrastructure 5 rhui5 1773670137
    fixed: vendor fix RHSA-2026:4943
  • Red Hat Hardened Images postgresql 18.3-1.2.hum1, postgresql-test 18.3-1.2.hum1, postgresql-plperl 18.3-1.2.hum1, postgresql-server 18.3-1.2.hum1, postgresql-contrib 18.3-1.2.hum1, postgresql-upgrade 18.3-1.2.hum1, +3 more Red Hat Update Infrastructure 5 rhui5 1773668803, rhui5 1773670073, rhui5 1773672059
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami postgresql
<14.21.0
>=15.0.0, <15.16.0
>=16.0.0, <16.12.0
>=17.0.0, <17.8.0
>=18.0.0, <18.2.0
14.21.0
15.16.0
16.12.0
17.8.0
18.2.0
julia LibPQ_jll
>=14.1.0+0, <16.13.0+0
16.13.0+0

Affected products

  • n/a PostgreSQL

Classification

Weakness
  • CWE-1287 Improper Validation of Specified Type of Input
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.