CVE-2021-29442

Authentication bypass

HIGH
7.5
CVSS Score
Published: April 27, 2021 at 08:20 PM UTC
Updated: June 17, 2026 at 03:47 AM UTC
1 product affected across 1 vendorNacos

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Severity
HIGH7.5
Exploit prediction
EPSS 66%

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)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.4.1
Affected range stops below 1.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_CONFIRMExploitThird Party Advisory
https://github.com/advisories/GHSA-36hp-jr8h-556f
x_refsource_MISCExploitThird Party Advisory
https://github.com/alibaba/nacos/issues/4463
x_refsource_MISCPatchThird Party Advisory
https://github.com/alibaba/nacos/pull/4517

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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