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Vulnerabilities

Vulnerability · CVE-2026-42283

DevSpace is a client-only developer tool for cloud-native development with Kubernetes.

Published May 14, 2026 · catalog updated Jun 17, 2026 · DevSpace is a client-only

Check if you run it

No confirmed exploitation is on record for CVE-2026-42283. EPSS is 0.15%. Act only if a listed version of DevSpace is a client-only is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (DevSpace is a client-only).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Advisory link
Affected products
cpe devspace/devspace

DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser to establish a cross-origin WebSocket connection to ws://127.0.0.1:8090. This vulnerability is fixed in 6.3.21.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe devspace/devspace6.3.20

How to fix CVE-2026-42283

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-42283. EPSS is 0.15%. Act only if a listed version of DevSpace is a client-only is installed.

Which versions are affected?

Compare what you have installed with 6.3.20. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information; CWE-306: Missing Authentication for Critical Function. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Kubernetes security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 14, 2026 · NIST NVD

    Detected

    DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser t

  2. Jun 17, 2026 · NIST NVD

    Updated

    DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser t

Sources

  • CVE.orgVulnerability recordCVE-2026-42283

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-42283

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-42283

    DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpa

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.