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Vulnerability record · CVE-2026-90775 · published 13 September 2026

CVE-2026-90775: Out-of-bounds read vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.63% · top 52.1% CWE-125 · Out-of-bounds read Awaiting Analysis
7.1CVSS 4.0 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
24 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-90775), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.