CVE-2019-17564 is a critical-severity (CVSS 9.8) Deserialization of Untrusted Data vulnerability in org.apache.dubbo:dubbo-rpc-http-invoker. 8 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.apache.dubbo:dubbo-rpc-http-invoker — see the affected versions and patch details below.
Deserialization of Untrusted Data in Apache Dubbo
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.dubbo:dubbo-rpc-http-invokerReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Unsafe deserialization occurs within a Dubbo application which has HTTP remoting enabled. An attacker may submit a POST request with a Java object in it to completely compromise a Provider instance of Apache Dubbo, if this instance enables HTTP. This issue affected Apache Dubbo 2.7.0 to 2.7.4, 2.6.0 to 2.6.7, and all 2.5.x versions.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.dubbo:dubbo-rpc-http-invoker | ≥ 2.5.0&&< 2.7.5 | 2.7.5org.apache.dubbo:dubbo-rpc-http-invoker:2.7.5 |
Affected Products
dubboapacheResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Unsafe deserialization occurs within a Dubbo application which has HTTP …
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Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.dubbo:dubbo-rpc-http-invoker, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.dubbo:dubbo-rpc-http-invoker to 2.7.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-17564 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.
How to detect CVE-2019-17564
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2019-17564 -u https://target- Template
- Apache Dubbo 2.5.x-2.7.4 - Insecure Deserialization
- Severity
- critical
- Impact
- Unauthenticated attackers can exploit unsafe deserialization to execute arbitrary code on Dubbo Provider instances with HTTP remoting enabled, leading to complete server compromise.
- Remediation
- Upgrade to Apache Dubbo version 2.7.5 or later, or disable HTTP remoting if not required.
Template by ProjectDiscovery nuclei-templates (Khalid6468), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2019-17564 in your dependencies?
Find it across Maven, including transitive dependencies.