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TI-2026-05825 Aliases CVE-2026-6638GHSA-3835-x2rj-c3qj

PostgreSQL REFRESH PUBLICATION allows SQL injection via table name

Priority LOW 37CWE-89Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
SQL injection
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-89.

Summary

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix Fixed PostgreSQL: 18.4, 17.10, 16.14Red Hat: 10 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—PostgreSQL18 to before 18.4; 17 to before 17.10; 16 to before 16.1418.4, 17.10, 16.14Patch availableCNA
  • PostgreSQL Vendor— Affected 18 to before 18.4; 17 to before 17.10; 16 to before 16.14 Fixed in 18.4, 17.10, 16.14 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*16.0 to before 16.14; 17.0 to before 17.10; 18.0 to before 18.4VulnerablePostgreSQL
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* Versions 16.0 to before 16.14; 17.0 to before 17.10; 18.0 to before 18.4 Vulnerable ·PostgreSQL

Remediation

  • Fix · CNA PostgreSQL Fixed in 18.4, 17.10, 16.14

Red Hat 10 advisories

  • RHSA-2026:28143 Released 2026-06-23 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream (v. 8) pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.s390x::postgresql:16 +47
  • RHSA-2026:27742 Released 2026-06-22 · Red Hat rating Important
    postgresql18 security update
    • Red Hat Enterprise Linux AppStream (v. 10) postgresql18-18.4-1.el10_2, postgresql18-contrib-18.4-1.el10_2, postgresql18-docs-18.4-1.el10_2 +10
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql18-test-rpm-macros-18.4-1.el10_2
  • RHSA-2026:27743 Released 2026-06-22 · Red Hat rating Important
    postgresql16 security update
    • Red Hat Enterprise Linux AppStream (v. 10) postgresql-16.14-1.el10_2, postgresql-contrib-16.14-1.el10_2, postgresql-docs-16.14-1.el10_2 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql-test-rpm-macros-16.14-1.el10_2
Show 7 more Red Hat advisories
  • RHSA-2026:27718 Released 2026-06-22 · Red Hat rating Important
    postgresql16 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) postgresql-16.14-1.el10_0, postgresql-contrib-16.14-1.el10_0, postgresql-docs-16.14-1.el10_0 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) postgresql-test-rpm-macros-16.14-1.el10_0
  • RHSA-2026:26525 Released 2026-06-17 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.s390x::postgresql:16 +47
  • RHSA-2026:26524 Released 2026-06-17 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.aarch64::postgresql:16, pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.ppc64le::postgresql:16, pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.s390x::postgresql:16 +47
  • RHSA-2026:26204 Released 2026-06-16 · Red Hat rating Important
    postgresql:18 security update
    • Red Hat Enterprise Linux AppStream (v. 9) pg_repack-1.5.3-1.module+el9.8.0+23739+1c42644c.aarch64::postgresql:18, pg_repack-1.5.3-1.module+el9.8.0+23739+1c42644c.ppc64le::postgresql:18, pg_repack-1.5.3-1.module+el9.8.0+23739+1c42644c.s390x::postgresql:18 +47
  • RHSA-2026:26203 Released 2026-06-16 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream (v. 9) pg_repack-1.5.1-1.module+el9.8.0+24090+8f0ee565.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el9.8.0+24090+8f0ee565.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el9.8.0+24090+8f0ee565.s390x::postgresql:16 +47
  • RHSA-2026:22878 Released 2026-06-03 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images postgresql-18.4-0.1.hum1@aarch64, postgresql-18.4-0.1.hum1@x86_64, postgresql-contrib-18.4-0.1.hum1@aarch64 +26
  • RHSA-2026:21182 Released 2026-05-26 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images postgresql17-17.10-0.1.hum1@aarch64, postgresql17-17.10-0.1.hum1@src, postgresql17-17.10-0.1.hum1@x86_64 +28

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:27742, RHSA-2026:27743
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:28143
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:26203, RHSA-2026:26204
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:26524
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:27718
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:26525
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:27742, RHSA-2026:27743
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:27718
Red Hat Hardened ImagesFixed RHSA-2026:21182, RHSA-2026:22878
Not affected: 5 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Self-service automation portal 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-6638
  2. 2026-10-03 Alias added: GHSA-3835-x2rj-c3qj

References

Patch 1

  • TI-2019-06651 In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and… CVSS 3.0HIGH 7.2
  • TI-2017-05187 Improper authentication in postgresql CVSS 3.0CRITICAL 9.8
  • TI-2020-15711 SQL injection in postgresql CVSS 3.1HIGH 8.8
  • TI-2013-01675 Argument injection vulnerability in PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9… CVSS 2.0MEDIUM 6.5
  • TI-2007-03176 The Database Link library (dblink) in PostgreSQL 8.1 implements functions via CREATE… CVSS 2.0HIGH 9.0
  • TI-2022-01423 SQL injection in postgresql CVSS 3.1HIGH 8.8
See all 202 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences