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.
References10
- github.com/mapfish/mapfish-print/commit/13beae7a7f970fc3526c1f7…
- github.com/mapfish/mapfish-print/commit/23a96e7baa15077bdb0e5fc…
- github.com/mapfish/mapfish-print/commit/3525e8150fcb5f40095930c…
- github.com/mapfish/mapfish-print/commit/56c47d3bf70d8428916dea8…
- github.com/mapfish/mapfish-print/commit/a55a24873db5f19b37abac7…
- github.com/mapfish/mapfish-print/commit/d13911ac6e0509444d64e74…
- github.com/mapfish/mapfish-print/pull/4212
- github.com/mapfish/mapfish-print/pull/4215
- github.com/mapfish/mapfish-print/pull/4216
- github.com/mapfish/mapfish-print/pull/4217
Metrics
- CVSS 3.1
-
8.6
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 45 · as of 8 November 2026
- CWE
- CWE-611
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.