SQL Injection Affecting mapserver package, versions <8.6.4-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-MAPSERVER-20029921
- published22 Sept 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
CVE-2026-54354 (opens in a new tab)How to fix?
Upgrade Debian:unstable mapserver to version 8.6.4-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mapserver package and not the mapserver package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-54354
- 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