CVE-2026-55848: mapfish-print: XXE on MapFish Print allows reading arbitrary files of certa

Description

mapfish-print is a component of MapFish for printing templated cartographic maps. Prior to 3.28.30, 3.30.32, 3.31.24, 3.33.16, and 4.0.5, MapFish Print accepts an attacker-controlled GML layer url in requests to the /api/print3/print endpoint and fetches XML parsed by core/src/main/java/org/mapfish/print/map/geotools/GmlLayer.java without disabling external entities and external DTDs. A remote XML document and DTD can expand a local file entity, and the resulting content can be exposed through the GML parsing and error path. This allows unauthenticated attackers to read files such as operating-system account data, Kubernetes service-account tokens, and certificates. Replacing the file entity target with an internal HTTP endpoint also permits server-side request forgery. This issue is fixed in versions 3.28.30, 3.30.32, 3.31.24, 3.33.16, and 4.0.5.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

mapfish mapfish-print

>= 3.0.0, < 3.28.30affected
>= 3.29.0, < 3.30.32affected
>= 3.31.0, < 3.31.24affected
>= 3.32.0, < 3.33.16affected
>= 4.0.0, < 4.0.5affected

mapfish org.mapfish.print.print-lib

>= 3.0.0, < 3.28.30affected
>= 3.29.0, < 3.30.32affected
>= 3.31.0, < 3.31.24affected
>= 3.32.0, < 3.33.16affected
>= 4.0.0, < 4.0.5affected

mapfish org.mapfish.print.print-servlet

>= 3.0.0, < 3.28.30affected
>= 3.29.0, < 3.30.32affected
>= 3.31.0, < 3.31.24affected
>= 3.32.0, < 3.33.16affected
>= 4.0.0, < 4.0.5affected

CVE-2026-55848

mapfish-print: XXE on MapFish Print allows reading arbitrary files of certain types