CVE-2021-30180
Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-30180- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-444
- Updated
- 2026-11-02
CVE List No score
Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)
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.
- Record
CVE-2021-30180- Updated
- 2026-11-02
EUVDEUVD-2022-1367 No score
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.
- Record
EUVD-2022-1367- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7wfc-x4f7-gg2x
Code injection in Apache Dubbo
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.
- Record
GHSA-7wfc-x4f7-gg2x- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94, CWE-444
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-30180- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-7wfc-x4f7-gg2x
Code injection in Apache Dubbo
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.
- Record
GHSA-7wfc-x4f7-gg2x- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-444, CWE-94
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.dubbo:dubboMaven |
2.7.0 up to 2.7.10 | 2.7.10 |
org.apache.dubbo:dubboMaven |
2.7.0 up to 2.7.10, plus listed versions 2.7.12.7.22.7.32.7.42.7.4.1 Show 5 moreShow less2.7.52.7.62.7.72.7.82.7.9 |
2.7.10 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | shoucheng3/apache__dubbo_CVE-2021-30180_2-7-9 | 2025-08-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30180 is a critical vulnerability (CVSS 9.8) in Apache Dubbo, published May 31, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 60.3%, the 99th percentile. Fixed in org.apache.dubbo:dubbo 2.7.10.