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

Quick assessment

Affected
mapfish mapfish-print
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mapfish-print 是 MapFish 项目中用于打印模板化制图地图的组件。在版本 3.28.30、3.30.32、3.31.24、3.33.16 和 4.0.5 之前，MapFish Print 在处理 /api/print3/print 端点的请求时，会接受攻击者可控的 GML 图层 URL，并获取由 解析的 XML，但解析过程中未禁用外部实体和外部 DTD。远程 XML 文档和 DTD 可以扩展本地文件实体，其结果可通过 GML 解析及错误路径泄露出来。这允许未认证的攻击者读取诸如操作系统账户数据、K

CVSS 8.6 · High
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I. Basic Information for CVE-2026-55848

Vulnerability Information
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Vulnerability Title
mapfish-print: XXE on MapFish Print allows reading arbitrary files of certain types
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mapfish mapfish-print >= 3.0.0, < 3.28.30 -
mapfish org.mapfish.print.print-lib >= 3.0.0, < 3.28.30 -
mapfish org.mapfish.print.print-servlet >= 3.0.0, < 3.28.30 -

II. Public POCs for CVE-2026-55848

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III. Intelligence Information for CVE-2026-55848

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Patches & Fixes for CVE-2026-55848 (12)

Vendor Advisories for CVE-2026-55848 (1)

Vendor Pages for CVE-2026-55848 (4)

IV. Related Vulnerabilities

Same product: mapfish-print
Same vendor: mapfish
Same weakness: CWE-611

V. Comments for CVE-2026-55848

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