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Vulnerability record · CVE-2025-12548 · published 13 January 2026

CVE-2025-12548: Missing authentication for critical function vulnerability

A flaw was found in Eclipse Che che-machine-exec. This vulnerability allows unauthenticated remote arbitrary command execution and secret exfiltration (SSH keys, tokens, etc.) from other users' Developer Workspace containers, via an unauthenticated JSON-RPC / websocket API exposed on TCP port 3333.

9.0 CVSS 3.1 Critical EPSS 1.3% · top 30.1% CWE-306 · Missing authentication for critical function Deferred
9.0CVSS 3.1 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
21 Sep 2026Last modified by NVD

Description

A flaw was found in Eclipse Che che-machine-exec. This vulnerability allows unauthenticated remote arbitrary command execution and secret exfiltration (SSH keys, tokens, etc.) from other users' Developer Workspace containers, via an unauthenticated JSON-RPC / websocket API exposed on TCP port 3333.

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

References

LinkTags
https://access.redhat.com/errata/RHSA-2025:22620
https://access.redhat.com/errata/RHSA-2025:22623
https://access.redhat.com/errata/RHSA-2025:22652
https://access.redhat.com/security/cve/CVE-2025-12548
https://bugzilla.redhat.com/show_bug.cgi?id=2408850

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Source: NIST National Vulnerability Database (record CVE-2025-12548), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.