PostGIS address_standardizer through 3.7.0 fails to validate the Weight parameter from caller-supplied rules tables before using it as an array index. Attackers can craft malicious rule rows with out-of-range Weight values to trigger out-of-bounds reads in the load_value array, causing the PostgreSQL backend process to crash and terminate all cluster sessions.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00345.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Postgis Subscribe
Address Standardizer Subscribe

No data.

No data.

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Vendors Products
Postgis Subscribe
Address Standardizer Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/postgis/address_standardizer cve-icon cve-icon
https://github.com/postgis/address_standardizer/blob/e987949e0fccff6a0e7a6d3f86814d5c7a01f481/NEWS.md cve-icon cve-icon
https://github.com/postgis/address_standardizer/blob/v3.7.0/src/analyze.c#L860 cve-icon cve-icon
https://github.com/postgis/address_standardizer/blob/v3.7.0/src/gamma.c#L301-L311 cve-icon cve-icon
https://github.com/postgis/address_standardizer/commit/a5cb4b1360a040973092f13b1af97a718e7e104a cve-icon cve-icon
https://github.com/postgis/address_standardizer/commit/e987949e0fccff6a0e7a6d3f86814d5c7a01f481 cve-icon cve-icon
https://github.com/postgis/address_standardizer/pull/6 cve-icon cve-icon
https://www.vulncheck.com/advisories/postgis-address-standardizer-through-3.7.0-out-of-bounds-read-via-unvalidated-rule-weight cve-icon cve-icon
History

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 13 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Postgis
Postgis address Standardizer
Vendors & Products Postgis
Postgis address Standardizer

Sun, 13 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description PostGIS address_standardizer through 3.7.0 fails to validate the Weight parameter from caller-supplied rules tables before using it as an array index. Attackers can craft malicious rule rows with out-of-range Weight values to trigger out-of-bounds reads in the load_value array, causing the PostgreSQL backend process to crash and terminate all cluster sessions.
Title PostGIS address_standardizer through 3.7.0 Out-of-Bounds Read via Unvalidated Rule Weight
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-18T17:23:06.091Z

Reserved: 2026-09-13T10:54:46.826Z

Link: CVE-2026-90775

cve-icon Vulnrichment

Updated: 2026-09-18T17:17:06.160Z

cve-icon NVD

Status : Received

Published: 2026-09-13T12:17:16.400

Modified: 2026-09-18T18:18:01.723

Link: CVE-2026-90775

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T17:45:17Z

Weaknesses