CVE-2026-40882Public exploitNetwork attack vector

Authenticated file disclosure and SSRF via XXE

Published Apr 22, 2026 · Updated Apr 22, 2026

XXE in OpenRemote Manager before 1.22.0 allows remote authenticated users to read short server files and make server-side requests. The Velbus startAssetImport method passes untrusted XML to a default DocumentBuilderFactory without disabling DTDs or external entities. The import endpoint requires Velbus import access; resolved files must contain fewer than 1,023 characters, while SSRF reaches resources accessible to the Manager runtime.

CVSS severity7.6
High
EPSS probability0.26%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in OpenRemote Manager before 1.22.0 allows remote authenticated users to read short server files and make server-side requests. The Velbus startAssetImport method passes untrusted XML to a default DocumentBuilderFactory without disabling DTDs or external entities. The import endpoint requires Velbus import access; resolved files must contain fewer than 1,023 characters, while SSRF reaches resources accessible to the Manager runtime.

The record

CVE
CVE-2026-40882
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
OpenRemote
Product
OpenRemote
Classifications
CWE-611, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 1.22.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenRemote · OpenRemoteversion=< 1.22.0

Published CVSS scores

7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

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.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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