CVE-2026-55848Public exploitNetwork attack vector

Unauthenticated file disclosure via external GML entities

Published Aug 28, 2026 · Updated Aug 28, 2026

XXE in GML parsing in MapFish Print allows remote attackers to read local files through an unauthenticated print request. GmlLayer fetches an attacker-controlled layer URL and parses the returned XML without disabling external entities or external DTDs, exposing expanded file content through an error path. No account or user interaction is required; the same entity resolution can send blind server-side requests to internal HTTP endpoints.

CVSS severity8.6
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in GML parsing in MapFish Print allows remote attackers to read local files through an unauthenticated print request. GmlLayer fetches an attacker-controlled layer URL and parses the returned XML without disabling external entities or external DTDs, exposing expanded file content through an error path. No account or user interaction is required; the same entity resolution can send blind server-side requests to internal HTTP endpoints.

The record

CVE
CVE-2026-55848
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
MapFish
Product
MapFish Print Servlet
Classifications
CWE-611, T1005, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.0.0, < 3.28.30
  2. Affected versionversion=>= 3.29.0, < 3.30.32
  3. Affected versionversion=>= 3.31.0, < 3.31.24
  4. Affected versionversion=>= 3.32.0, < 3.33.16
  5. Affected versionversion=>= 4.0.0, < 4.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MapFish · MapFish Print Servletversion=>= 3.0.0, < 3.28.30; version=>= 3.29.0, < 3.30.32; version=>= 3.31.0, < 3.31.24; version=>= 3.32.0, < 3.33.16; version=>= 4.0.0, < 4.0.5
MapFish · MapFish Printversion=>= 3.0.0, < 3.28.30; version=>= 3.29.0, < 3.30.32; version=>= 3.31.0, < 3.31.24; version=>= 3.32.0, < 3.33.16; version=>= 4.0.0, < 4.0.5
MapFish · MapFish Print Libraryversion=>= 3.0.0, < 3.28.30; version=>= 3.29.0, < 3.30.32; version=>= 3.31.0, < 3.31.24; version=>= 3.32.0, < 3.33.16; version=>= 4.0.0, < 4.0.5

Published CVSS scores

8.6GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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