CVE-2021-29442

8.6 HIGH 64% exploit odds Fix listed Auth & access Device

What it is

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)

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure.
Exploit odds: 64.2% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-03-30 00:00 UTC ReservedThe CVE id was reserved by its CNA
2021-04-27 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:47 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 64.2% in the next 30 days (EPSS).
Severity: 8.6 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-04-27 21:15 UTC
Last modified: 2026-06-17 03:47 UTC
Exploit probability: 64.2% · EPSS, next 30 days
Weakness: CWE-306 · Missing authentication
Record status: Modified

Affected

Alibaba Nacos < 1.4.1

Attack profile CVSS 3.1 · 8.6

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2021-29442.md and follow it. Check whether this project is affected by CVE-2021-29442. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record