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TI-2021-14581 Aliases CVE-2021-36162GHSA-r577-4hq7-73qh

Unprotected yaml deserialization cause RCE

Priority MEDIUM 42CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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-77.

Summary

Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) and retrieved by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which by default will enable calling arbitrary constructors. An attacker with access to the configuration center he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2

Why it matters now

EPSS 0.02261 83rd percentileScored 2026-11-07
Fix Fixed org.apache.dubbo:dubbo (Maven): 2.7.13, 3.0.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache DubboApache Dubbo 2.7.x – 2.7.12; Apache Dubbo 3.0.x – 3.0.1—No fix listedCNA
—org.apache.dubbo:dubbo (Maven)before 2.7.132.7.13Patch availableGHSA-r577-4hq7-73qh
—org.apache.dubbo:dubbo (Maven)3.0.0 to before 3.0.23.0.2Patch availableGHSA-r577-4hq7-73qh
  • Apache Dubbo VendorApache Affected Apache Dubbo 2.7.x – 2.7.12; Apache Dubbo 3.0.x – 3.0.1 Fixed in — No fix listed CNA
  • org.apache.dubbo:dubbo (Maven) Vendor— Affected before 2.7.13 Fixed in 2.7.13 Patch available GHSA-r577-4hq7-73qh
  • org.apache.dubbo:dubbo (Maven) Vendor— Affected 3.0.0 to before 3.0.2 Fixed in 3.0.2 Patch available GHSA-r577-4hq7-73qh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*2.7.0 – 2.7.12; 3.0.0 – 3.0.1VulnerableApache
  • cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:* Versions 2.7.0 – 2.7.12; 3.0.0 – 3.0.1 Vulnerable ·Apache

Remediation

  • Fix · GHSA-r577-4hq7-73qh org.apache.dubbo:dubbo (Maven) Fixed in 2.7.13 Advisory →
  • Fix · GHSA-r577-4hq7-73qh org.apache.dubbo:dubbo (Maven) Fixed in 3.0.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-36162
  2. 2026-10-03 Alias added: GHSA-r577-4hq7-73qh

References

Advisory 2

Other 1

  • 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
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences