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Fencer Vulns
medium 4.3

CVE-2026-6575 json

PostgreSQL pg_restore_attribute_stats accepts values that cause query planning to read past end of stats array

published 2026-05-14 5 mo ago modified 2026-09-08 2 mo ago also BIT-postgresql-2026-6575 , EUVD-2026-30287

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

Buffer over-read in PostgreSQL function pg_restore_attribute_stats() accepts array values of unmatched length, which causes query planning to read past end of one array. This allows a table maintainer to infer memory values past that array end. Within major version 18, minor versions before PostgreSQL 18.4 are affected. Versions before PostgreSQL 18 are unaffected.

Patch / fix

  • bitnami postgresql 18.4.0
  • n/a PostgreSQL 18.4
  • postgresql-18 Debian 14 18.4-1

debian advisories DEBIAN-CVE-2026-6575

  • postgresql-14 Ubuntu 22.04 LTS 14.23-0ubuntu0.22.04.1
  • postgresql-16 Ubuntu 24.04 LTS 16.14-0ubuntu0.24.04.1
  • postgresql-17 Ubuntu 25.10 17.10-0ubuntu0.25.10.1
  • postgresql-18 Ubuntu 26.04 LTS 18.4-0ubuntu0.26.04.1

ubuntu advisories UBUNTU-CVE-2026-6575

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 18.4-1.el10_2
  • postgresql18-test RHEL 10.2 18.4-1.el10_2
  • postgresql18-plperl RHEL 10.2 18.4-1.el10_2
  • postgresql18-server RHEL 10.2 18.4-1.el10_2
  • postgresql18-contrib RHEL 10.2 18.4-1.el10_2
  • postgresql18-upgrade RHEL 10.2 18.4-1.el10_2
  • postgresql18-plpython3 RHEL 10.2 18.4-1.el10_2
  • postgresql18-private-libs RHEL 10.2 18.4-1.el10_2

red hat advisories RHSA-2026:27742RHSA-2026:26204RHSA-2026:22878RHSA-2026:21182

  • postgresql18 SLES for SAP applications 16.0, SLES 16.0 18.4-160000.1.1

suse advisories SUSE-SU-2026:22077-1

  • postgresql18 openSUSE Tumbleweed 18.4-1.1

opensuse advisories openSUSE-SU-2026:10828-1

  • postgresql18 AlmaLinux 10 18.4-1.el10_2
  • postgresql18-test AlmaLinux 10 18.4-1.el10_2
  • postgresql18-plperl AlmaLinux 10 18.4-1.el10_2
  • postgresql18-server AlmaLinux 10 18.4-1.el10_2
  • postgresql18-contrib AlmaLinux 10 18.4-1.el10_2
  • postgresql18-upgrade AlmaLinux 10 18.4-1.el10_2
  • postgresql18-plpython3 AlmaLinux 10 18.4-1.el10_2
  • postgresql18-private-libs AlmaLinux 10 18.4-1.el10_2

almalinux advisories ALSA-2026:27742ALSA-2026:26204

  • postgresql18 Alpine 3.24, Alpine 3.23 18.4-r0

alpine advisories ALPINE-CVE-2026-6575

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

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-2026-6575 updated cvss 4.3

postgresql: PostgreSQL: Information disclosure via buffer over-read in pg_restore_attribute_stats()

  • Red Hat Self-service automation portal 2 ansible-automation-platform/bootc-automation-portal-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 9) pgaudit 18.0-1.module+el9.8.0+23739+1c42644c, postgis 3.6.1-2.module+el9.8.0+23739+1c42644c, pgvector 0.8.1-1.module+el9.8.0+23739+1c42644c, pg_repack 1.5.3-1.module+el9.8.0+23739+1c42644c, postgresql 18.4-2.module+el9.8.0+24359+da7fad50, postgis-utils 3.6.1-2.module+el9.8.0+23739+1c42644c, +12 more
    fixed: vendor fix RHSA-2026:26204
  • Red Hat Enterprise Linux AppStream (v. 10) postgresql18 18.4-1.el10_2, postgresql18-test 18.4-1.el10_2, postgresql18-plperl 18.4-1.el10_2, postgresql18-server 18.4-1.el10_2, postgresql18-contrib 18.4-1.el10_2, postgresql18-upgrade 18.4-1.el10_2, +2 more Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql18-test-rpm-macros 18.4-1.el10_2
    fixed: vendor fix RHSA-2026:27742
  • Red Hat Hardened Images postgresql18 18.4-0.1.hum1, postgresql17 17.10-0.1.hum1, postgresql17-test 17.10-0.1.hum1, postgresql17-pltcl 17.10-0.1.hum1, postgresql17-plperl 17.10-0.1.hum1, postgresql17-server 17.10-0.1.hum1, +5 more
    fixed: vendor fix RHSA-2026:21182
  • 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 libpq, pgaudit, pg_repack, postgresql, postgresql-jdbc, postgresql-test, +10 more Red Hat Enterprise Linux 9 postgresql, postgresql-test, postgresql-pltcl, postgresql-plperl, postgresql-server, postgresql-contrib, +4 more Red Hat Enterprise Linux 10 postgresql16 Red Hat Hardened Images postgresql 18.4-0.1.hum1, postgresql-test 18.4-0.1.hum1, postgresql-plperl 18.4-0.1.hum1, postgresql-server 18.4-0.1.hum1, postgresql-contrib 18.4-0.1.hum1, postgresql-upgrade 18.4-0.1.hum1, +3 more
    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
5 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% 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
>=18.0.0, <18.4.0
18.4.0

Affected products

  • n/a PostgreSQL

Classification

Weakness
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.