TI-2026-12367 Aliases CVE-2026-14673 GHSA-qp83-ppf3-v924

PostgreSQL amcheck does not clear untrusted search path

LOW 18CWE-426Published 2026-08-13 · Updated 2026-08-29

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · None
Fix status: Partial Red Hat: 1 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-426.

Summary

Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16, 15, and 14, minor versions before PostgreSQL 18.6, 16.15, 15.19, and 14.24 are affected. PostgreSQL 17 is unaffected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00269 19th percentileScored 2026-11-07

Fix Partial PostgreSQL: 18.6, 16.15, 15.19 +1Red Hat: 2 advisoriesRed Hat: 1 fixed, 4 without a fix

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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	PostgreSQL	18 to before 18.6; 16 to before 16.15; 15 to before 15.19; before 14.24	18.6, 16.15, 15.19, 14.24	Patch available	CNA

PostgreSQL Vendor— Affected 18 to before 18.6; 16 to before 16.15; 15 to before 15.19; before 14.24 Fixed in 18.6, 16.15, 15.19, 14.24 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:postgresql:postgresql::::::::	14.0 to before 14.24; 15.0 to before 15.19; 16.0 to before 16.15; 18.0 to before 18.5	Vulnerable	PostgreSQL

cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* Versions 14.0 to before 14.24; 15.0 to before 15.19; 16.0 to before 16.15; 18.0 to before 18.5 Vulnerable ·PostgreSQL

Remediation

Fix · CNA PostgreSQL Fixed in 18.6, 16.15, 15.19, 14.24

Red Hat 2 advisories

RHSA-2026:57198 Released 2026-08-20 · Red Hat rating Important
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images postgresql17-17.11-1.hum1@aarch64, postgresql17-17.11-1.hum1@src, postgresql17-17.11-1.hum1@x86_64 +28
RHSA-2026:54751 Released 2026-08-13 · Red Hat rating Moderate
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images postgresql-18.6-0.1.hum1@aarch64, postgresql-18.6-0.1.hum1@x86_64, postgresql-contrib-18.6-0.1.hum1@aarch64 +26

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Self-service automation portal 2	Affected	No fix yet: Fix deferred
Red Hat Hardened Images	Fixed	RHSA-2026:54751, RHSA-2026:57198

Not affected: 3 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Hardened Images

Timeline

2026-10-02 Threatist record created from CVE-2026-14673
2026-10-03 Alias added: GHSA-qp83-ppf3-v924
2026-11-06 Affected versions changed · Red Hat

References

Advisory 1

https://www.postgresql.org/support/security/CVE-2026-14673/

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