High severity · published Oct 13, 2026
CVE-2026-54640
OpenRemote: XXE in KNXProtocol.startAssetImport() allows arbitrary file read via unprotected XMLInputFactory
7.6
CVSS
0.2%
EPSS
No
On KEV
Description
OpenRemote is an open-source internet-of-things platform. Prior to 1.24.2, the KNXProtocol.startAssetImport method in agent/src/main/java/org/openremote/agent/protocol/knx/KNXProtocol.java processes 0.xml from an authenticated user's uploaded ETS project ZIP with Saxon TransformerFactoryImpl and XMLInputFactory parsers that permit external entity resolution. This incomplete remediation of CVE-2026-40882 leaves the KNX handler unprotected while the parallel Velbus handler is hardened, allowing a regular realm user to read files accessible to the JVM process or cause server-side requests. This issue is fixed in version 1.24.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openremote · openremote
< 1.24.2 · source: vendor
OP
openremote-manager · io.openremote
< 1.24.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54640
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54640
x_refsource_CONFIRM
https://github.com/openremote/core/security/advisories/GHSA-7v6w-c3f4-9wpq
x_refsource_MISC
https://github.com/openremote/core/commit/c28d3c60ebc2da68d9b6c4a6d7a5ad875a255ee9
x_refsource_MISC
https://github.com/openremote/core/releases/tag/1.24.2
