Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)
Priority HIGH 76CWE-444Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
Apache Dubbo prior to 2.7.9 support Tag routing which will enable a customer to route the request to the right server. These rules are used by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers may enable calling arbitrary constructors.
Why it matters now
EPSS 0.60282 99th percentileScored 2026-11-08
Fix Fixed Apache Dubbo (Apache Software Foundation): 2.7.9org.apache.dubbo:dubbo (Maven): 2.7.10
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Dubbo | Apache Dubbo 2.7.x to before 2.7.9 | 2.7.9 | Patch available | CNA |
| — | org.apache.dubbo:dubbo (Maven) | 2.7.0 to before 2.7.10 | 2.7.10 | Patch available | GHSA-7wfc-x4f7-gg2x |
- Apache Dubbo VendorApache Affected Apache Dubbo 2.7.x to before 2.7.9 Fixed in 2.7.9 Patch available CNA
- org.apache.dubbo:dubbo (Maven) Vendor— Affected 2.7.0 to before 2.7.10 Fixed in 2.7.10 Patch available GHSA-7wfc-x4f7-gg2x
Remediation
- Fix · CNA Apache Dubbo (Apache Software Foundation) Fixed in 2.7.9
- Fix · GHSA-7wfc-x4f7-gg2x org.apache.dubbo:dubbo (Maven) Fixed in 2.7.10 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30180
- 2026-10-03 Alias added: GHSA-7wfc-x4f7-gg2x
References
More Apache Dubbo vulnerabilities
- TI-2021-12489 Regular expression Denial of Service in MooTools CVSS 3.1CRITICAL 9.8
- TI-2021-10721 Apache Dubbo RCE on customers via Script route poisoning (Nashorn script injection) CVSS 3.1CRITICAL 9.8
- TI-2019-13107 Deserialization of untrusted data in Apache Dubbo CVSS 3.1CRITICAL 9.8
- TI-2021-07774 Dubbo Zookeeper does not check serialization id CVSS 3.1CRITICAL 9.8
- TI-2021-19290 Dubbo Hessian cause RCE when parse error CVSS 3.1CRITICAL 9.8
- TI-2020-01872 Deserialization of untrusted data in Apache Dubbo CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-30180 · CVE Program
- CVE-2021-30180 · NVD
- FIRST EPSS
- GHSA-7wfc-x4f7-gg2x · GitHub Advisory Database · CC BY 4.0
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