CVE-2026-42283: devspace · Missing Authentication
Affects devspaceSource CVE Database V5
Not known to be exploited · CVSS 7.7 High : upgrade to 6.3.21 soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.3.21
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade devspace and devspace-sh/devspace to 6.3.21.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| devspace-shdevspace | Affected
| Fixed in
|
GitHubdevspace-sh/devspacepkg:github/devspace-sh/devspaceOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade DevSpace to version 6.3.21 or later, where this vulnerability is fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No other mitigation steps are indicated by the vendor advisory.
Description
DevSpace versions prior to 6.3.21 have a vulnerability where the UI server WebSocket accepts connections from all origins by default. This allows a malicious website visited by a developer to establish a cross-origin WebSocket connection to ws://127.0.0.1:8090, exposing several endpoints without proper authentication. The issue is fixed in version 6.3.21.