CVE-2026-114278：che‑machine‑exec 允許未授權使用者執行任意指令
CVE-2026-114278 - Unauthenticated Command Injection via kubeconfig Username in che-machine-exec
che‑machine‑exec 服務因將使用者輸入直接拼接至 shell 指令，導致未啟用身份驗證時可被遠端執行任意指令。
- - 影響：任何可連線至服務的攻擊者都能在容器內執行程式。
- - 修補建議：立即啟用身份驗證、將服務升級至最新版、並在程式中對輸入進行消毒。
- - 參考資源：GitHub commit、GitLab CVE 追蹤。
未授權使用者可藉由 che‑machine‑exec 執行任意指令，請即時啟用身份驗證並升級至最新版。
The che-machine-exec service constructs a shell command by concatenating user-controlled input (the username and namespace fields from the /exec/init and /exec/config JSON endpoints) into a double-quoted sh -c "echo "..." > ..." invocation without any escaping. When che-machine-exec is run with authentication disabled (its default), any network-reachable attacker can achieve remote code execution in containers che-machine-exec is configured to access, via shell command substitution ($(...) or backticks).
Impact
Affected Products
The following products are affected by CVE-2026-114278
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
| ID | Vendor | Product | Action |
|---|---|---|---|
| 1 | Eclipse | che |
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | e51fbebd-6053-4e49-959f-1b94eeb69a2c | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Remediate command injection by sanitizing user input used in shell commands.
- Sanitize all user-supplied input used in shell commands.
- Avoid directly concatenating user input into commands.
- Ensure authentication is enabled for the service.
- Update the service to the latest version.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-114278.
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-114278 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-114278
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-114278 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-114278 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
十月. 28, 2026
Action Type Old Value New Value Added Description The che-machine-exec service constructs a shell command by concatenating user-controlled input (the username and namespace fields from the /exec/init and /exec/config JSON endpoints) into a double-quoted sh -c "echo "..." > ..." invocation without any escaping. When che-machine-exec is run with authentication disabled (its default), any network-reachable attacker can achieve remote code execution in containers che-machine-exec is configured to access, via shell command substitution ($(...) or backticks). Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/114xxx/CVE-2026-114278.json">CVE-2026-114278</a> Added Reference https://github.com/eclipse-che/che-machine-exec/commit/a78541c29e5f48fd59a49cf206bc0e507628bd23 Added Reference https://gitlab.eclipse.org/security/cve-assignment/-/work_items/476 Added Reference https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/359
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.