CVE-2021-29442

Name: CVE-2021-29442
Creator: NVD / NIST
Published: 2021-04-27T21:15:08.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 64.70%

Last modified Jun 17, 2026

CVE-2021-29442 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. EPSS estimates a 64.70% chance of exploitation in the next 30 days.

Description

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

64.70%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Alibaba	Nacos	< 1.4.1

References

https://github.com/advisories/GHSA-36hp-jr8h-556fExploit, Third Party Advisory
https://github.com/alibaba/nacos/issues/4463Exploit, Third Party Advisory
https://github.com/alibaba/nacos/pull/4517Patch, Third Party Advisory
https://github.com/advisories/GHSA-36hp-jr8h-556fExploit, Third Party Advisory
https://github.com/alibaba/nacos/issues/4463Exploit, Third Party Advisory
https://github.com/alibaba/nacos/pull/4517Patch, Third Party Advisory

Timeline

Published: Apr 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29442?

How severe is CVE-2021-29442?

CVE-2021-29442 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 64.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29442?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-29442?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST