CVE-2021-36161 json
Unprotected input value toString cause RCE
published 2021-09-09 5 y ago modified 2026-06-17 4 mo ago also GHSA-qvm7-23cj-437v , EUVD-2021-2103
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Some component in Dubbo will try to print the formated string of the input arguments, which will possibly cause RCE for a maliciously customized bean with special toString method. In the latest version, we fix the toString call in timeout, cache and some other places. Fixed in Apache Dubbo 2.7.13
Patch / fix
- maven org.apache.dubbo:dubbo 2.7.13
- apache dubbo 2.7.13
Exploit prediction
2.47% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.dubbo:dubbo | <2.7.13 |
2.7.13 |
Affected products
- Apache Software Foundation Apache Dubbo
Classification
- Weakness
-
- CWE-134 Use of Externally-Controlled Format String
References
-
lists.apache.org
/thread.html/r40212261fd5d638074b65f22ac73eebe93ace310c79d4cfcca4863da%40%3Cdev.dubbo.apache.org%3E
web, mailing-list, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-36161
advisory
-
github.com
/apache/dubbo
package
Sources
- CVE List CVE-2021-36161
- GitHub Advisory GHSA-qvm7-23cj-437v
- NVD CVE-2021-36161
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