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OpenAdvisories
High · 8.6 CVE-2026-55848 EUVD-2026-68018GHSA-5v29-34h8-v68r

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

Published Aug 28, 2026 · Updated Aug 31, 2026 · Assigned by GitHub_M

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

VendorProductAffectedFixed
mapfish mapfish-print >= 3.0.0, < 3.28.30, >= 3.29.0, < 3.30.32, >= 3.31.0, < 3.31.24, >= 3.32.0, < 3.33.16, >= 4.0.0, < 4.0.5 —
mapfish org.mapfish.print.print-lib >= 3.0.0, < 3.28.30, >= 3.29.0, < 3.30.32, >= 3.31.0, < 3.31.24, >= 3.32.0, < 3.33.16, >= 4.0.0, < 4.0.5 —
mapfish org.mapfish.print.print-servlet >= 3.0.0, < 3.28.30, >= 3.29.0, < 3.30.32, >= 3.31.0, < 3.31.24, >= 3.32.0, < 3.33.16, >= 4.0.0, < 4.0.5 —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.mapfish:print.print-servlet >= 3.0.0, < 3.28.30 3.28.30 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-lib >= 3.0.0, < 3.28.30 3.28.30 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-lib >= 3.29.0, < 3.30.32 3.30.32 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-lib >= 3.32.0, < 3.33.16 3.33.16 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-lib >= 3.34.0, < 4.0.5 4.0.5 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-servlet >= 3.29.0, < 3.30.32 3.30.32 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-servlet >= 3.31.0, < 3.31.24 3.31.24 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-servlet >= 3.32.0, < 3.33.16 3.33.16 GHSA-5v29-34h8-v68r
Maven org.mapfish.print:print-servlet >= 3.34.0, < 4.0.5 4.0.5 GHSA-5v29-34h8-v68r

References