What’s Vulnerable › Vulnerabilities

CVE-2026-90775: PostGIS address_standardizer through 3.7.0 Out-of-Bounds Read via Unvalidated Rule Weight

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-13 · updated 2026-09-24
• Weakness: CWE-125

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.

Affected products

• PostGIS address_standardizer: through 3.7.0

References

• 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-weight

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