Is CVE-2021-29442 actively exploited?

Yes. CVE-2021-29442 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-29442 be exploited remotely?

The attack vector of CVE-2021-29442 has not been classified yet.

What is the CVSS score of CVE-2021-29442?

CVE-2021-29442 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-29442

UNKNOWNCISA KEVIN THE WILD

CVE-2021-29442

Published: April 11, 2026

EPSS:92.76%probability of exploitation in 30 daysPercentile:99.8th

Official 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)

NVD Source

Risk Analysis

This Nacos vulnerability allows unauthenticated users to access the /derby endpoint in versions prior to 1.4.1 when using embedded storage. This enables management operations, including querying or wiping out the database. Its inclusion in CISA's KEV catalog makes it an urgent concern.

This vulnerability is actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities catalog. It is remotely exploitable by accessing an unprotected endpoint.

Recommended Action

Upgrade Nacos to version 1.4.1 or later. If using embedded storage, consider migrating to external storage like MySQL. Implement strict access controls to Nacos instances.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-29442 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-29442 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.