Vulnerability Description
MapServer is a system for developing web-based GIS applications. Prior to 8.6.4, MapServer's PostGIS runtime filter translation in src/mappostgis.cpp and msPostGISLayerTranslateFilter() treats a filteritem as numeric when CONNECTIONTYPE POSTGIS and metadata such as gml_<item>_type=Integer are configured, but it does not verify that attacker-controlled CGI qstring or OGC API Features featureId input is a numeric literal. The unquoted input is concatenated into the generated PostgreSQL/PostGIS predicate, allowing an unauthenticated remote attacker with access to an affected query endpoint to bypass predicates, enumerate unintended records, perform boolean-based or time-based SQL injection, and increase database load. The issue does not by itself establish database modification capabilities. This issue is fixed in version 8.6.4.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/MapServer/MapServer/commit/65f1b53c258df2abdf6ce1f437c29e75e9
- https://github.com/MapServer/MapServer/commit/bd59d49779d2ecc64ca8dc1281c53231a5
- https://github.com/MapServer/MapServer/pull/7516
- https://github.com/MapServer/MapServer/releases/tag/rel-8-6-4
- https://github.com/MapServer/MapServer/security/advisories/GHSA-xp29-8wp5-wc3p
- https://mapserver.org/development/changelog/changelog-8-6.html#changelog-8-6
FAQ
What is CVE-2026-54354?
CVE-2026-54354 is a vulnerability with a CVSS score of 8.2 (HIGH). MapServer is a system for developing web-based GIS applications. Prior to 8.6.4, MapServer's PostGIS runtime filter translation in src/mappostgis.cpp and msPostGISLayerTranslateFilter() treats a filte...
How severe is CVE-2026-54354?
CVE-2026-54354 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54354?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.