What’s Vulnerable › Vulnerabilities

CVE-2026-54354: MapServer: PostGIS Numeric Filter Value SQL Injection in MapServer Runtime Query Translation

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-24
• Weakness: CWE-89

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.

Affected products

• MapServer: from 8.4.0, < 8.6.4

References

• https://github.com/MapServer/MapServer/commit/65f1b53c258df2abdf6ce1f437c29e75e9976247
• https://github.com/MapServer/MapServer/commit/bd59d49779d2ecc64ca8dc1281c53231a50b698e
• 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

Get alerted when CVE-2026-54354 or the next vulnerability affects your stack