CVE-2026-54640 OpenRemote: XXE in KNXProtocol.startAssetImport() allows arbitrary file read via unprotected XMLInputFactory
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-54640?
CVE-2026-54640 is a high-severity vulnerability in io.openremote openremote, published on 13 Oct 2026.
Official 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.
Weakness: CWE-611
Which versions are affected by CVE-2026-54640?
2 open source packages ship an affected version, including io.openremote:openremote-agent.
| Package | Affected | Fixed in |
|---|---|---|
io.openremote:openremote-agent Maven | All versions | 1.24.2 |
io.openremote:openremote-agent Maven | All versions | 1.24.2 |
How do I fix CVE-2026-54640?
Upgrade io.openremote:openremote-agent to 1.24.2 or later.
Is CVE-2026-54640 being exploited?
There is no known exploitation of CVE-2026-54640 in the wild and no public exploit code.
Sources
Also known as GHSA-7v6w-c3f4-9wpq.