CVE-2025-48459 is a medium-severity (CVSS 5.3) Deserialization of Untrusted Data vulnerability in org.apache.iotdb:iotdb-confignode. A fix is available for org.apache.iotdb:iotdb-confignode — see the affected versions and patch details below.
Apache IoTDB: Deserialization of untrusted Data
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-48459.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.apache.iotdb:iotdb-confignode🐍apache-iotdbReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven, PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Summary
Apache IoTDB deserializes data from external inputs without sufficient validation, allowing attacker-controlled serialized objects to be processed. In environments where a compatible gadget chain is reachable, this can be abused to execute arbitrary code or alter server state; at minimum it enables high-impact integrity and confidentiality compromise on the IoTDB process.
Affected
Apache IoTDB from 1.0.0 before 2.0.5.
Remediation
Upgrade to 2.0.5, which addresses the flaw. If immediate upgrade is not possible, restrict exposure of IoTDB endpoints to trusted networks and disable or sanitize any feature paths that accept serialized payloads. These mitigations are defense-in-depth only; upgrading to 2.0.5 is the definitive fix.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.iotdb:iotdb-confignode | ≥ 1.0.0&&< 2.0.5 | 2.0.5org.apache.iotdb:iotdb-confignode:2.0.5 |
| 🐍PyPI | apache-iotdb | ≥ 1.0.0&&< 2.0.5 | 2.0.5pip install --upgrade 'apache-iotdb==2.0.5' |
Affected Products
iotdbapacheDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.iotdb:iotdb-confignode, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.iotdb:iotdb-confignode to 2.0.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-48459 is resolved across your whole dependency graph.
Workarounds
Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.
Frequently Asked Questions
Is CVE-2025-48459 in your dependencies?
Find it across Maven, PyPI, including transitive dependencies.