CVE-2026-61570Network attack vector

Local file reads via enabled external entities

Published Sep 22, 2026 · Updated Sep 22, 2026

XML external entity injection in MerlinReader in MPXJ 5.5.5 through 16.4.0 allows attackers to read local files through crafted Merlin databases. MerlinReader creates a DocumentBuilder with default settings for XML in the ZTIMEINTERVALS column, leaving DOCTYPE declarations and external entities enabled. Exploitation requires an untrusted Merlin project SQLite database to be parsed, and subsequent XML handling makes exfiltration of the file contents unlikely.

CVSS severity7.5
High
EPSS probability0.35%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

XML external entity injection in MerlinReader in MPXJ 5.5.5 through 16.4.0 allows attackers to read local files through crafted Merlin databases. MerlinReader creates a DocumentBuilder with default settings for XML in the ZTIMEINTERVALS column, leaving DOCTYPE declarations and external entities enabled. Exploitation requires an untrusted Merlin project SQLite database to be parsed, and subsequent XML handling makes exfiltration of the file contents unlikely.

The record

CVE
CVE-2026-61570
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Jon Iles
Product
MPXJ
Classifications
CWE-611, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 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=>= 5.5.5, < 16.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jon Iles · MPXJversion=>= 5.5.5, < 16.4.1

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started