Deserialization of untrusted data in Apache Dubbo
Priority MEDIUM 59CWE-502Published · 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-502.
Summary
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
Why it matters now
EPSS 0.16441 97th percentileScored 2026-11-07
Fix Fixed org.apache.dubbo:dubbo (Maven): 2.7.7org.apache.dubbo:dubbo-common (Maven): 2.7.7
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 Dubbo | Apache Dubbo 2.5.x, 2.6.0 to 2.6.8, 2.7.0 to 2.7.7 | — | No fix listed | CNA |
| — | org.apache.dubbo:dubbo (Maven) | before 2.7.7 | 2.7.7 | Patch available | GHSA-whww-v56c-cgv2 |
| — | org.apache.dubbo:dubbo-common (Maven) | before 2.7.7 | 2.7.7 | Patch available | GHSA-whww-v56c-cgv2 |
- Apache Dubbo Vendor— Affected Apache Dubbo 2.5.x, 2.6.0 to 2.6.8, 2.7.0 to 2.7.7 Fixed in — No fix listed CNA
- org.apache.dubbo:dubbo (Maven) Vendor— Affected before 2.7.7 Fixed in 2.7.7 Patch available GHSA-whww-v56c-cgv2
- org.apache.dubbo:dubbo-common (Maven) Vendor— Affected before 2.7.7 Fixed in 2.7.7 Patch available GHSA-whww-v56c-cgv2
Remediation
- Fix · GHSA-whww-v56c-cgv2 org.apache.dubbo:dubbo (Maven) Fixed in 2.7.7 Advisory →
- Fix · GHSA-whww-v56c-cgv2 org.apache.dubbo:dubbo-common (Maven) Fixed in 2.7.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1948
- 2026-10-03 Alias added: GHSA-whww-v56c-cgv2
References
Advisory 2
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-2021-10720 Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling) 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
Sources
- CVE-2020-1948 · CVE Program
- CVE-2020-1948 · NVD
- FIRST EPSS
- GHSA-whww-v56c-cgv2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences