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TI-2026-51623 Aliases CVE-2026-73514GHSA-7xxg-v5x5-6wjr

PostGIS address_standardizer Out-of-Bounds Write via standardize_address()

Priority HIGH 73CWE-787Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

The address_standardizer extension for PostGIS through 3.7.0, fixed in commit 423570b, contains an out-of-bounds write vulnerability that allows a database user with the ability to supply caller-controlled relation names to standardize_address() to trigger memory corruption by providing a rules table with a classification Type value exceeding the fixed class range. Attackers can craft a malicious rules table entry with an oversized rule type value that is used without bounds checking as an index into an internal output-link table, resulting in an out-of-bounds write.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0082 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

No affected products listed by the sources yet.

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73514
  2. 2026-10-03 Alias added: GHSA-7xxg-v5x5-6wjr

References

Exploit 1

Patch 3

  • TI-2026-51624 PostGIS < 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer CVSS 4.0HIGH 7.2
  • TI-2017-13533 PostGIS 2.x before 2.3.3, as used with PostgreSQL, allows remote attackers to cause a… CVSS 3.1HIGH 7.5
  • TI-2026-61682 PostGIS address_standardizer through 3.7.0 Out-of-Bounds Read via Unvalidated Rule Weight CVSS 4.0HIGH 7.1

Sources

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