Eclipse Che up to 7.122.x URL Fetcher /api/scm/resolve URLFetcher.fetch url server-side request forgery

Summaryinfo

A vulnerability, which was classified as problematic, was found in Eclipse Che up to 7.122.x. This affects the function URLFetcher.fetch of the file /api/scm/resolve of the component URL Fetcher. The manipulation of the argument url results in server-side request forgery. This vulnerability is identified as CVE-2026-86671. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Eclipse Che up to 7.122.x. It has been classified as problematic. Affected is the function URLFetcher.fetch of the file /api/scm/resolve of the component URL Fetcher. The manipulation of the argument url with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality. CVE summarizes:

In Eclipse Che versions 7.29.0 and later, the GET `/api/scm/resolve` and `POST /api/factory/resolver` endpoints pass an attacker-controlled URL to `URLFetcher.fetch()`, which calls `new URL(url).openConnection()` with no scheme or host allow-list and returns the response body to the caller. Any authenticated Che user can read arbitrary local files via the file:// scheme (including the pod's Kubernetes service-account token at `file:///var/run/secrets/kubernetes.io/serviceaccount/token`), reach internal HTTP services and cloud instance metadata endpoints (169.254.169.254), and have their stored SCM personal access token attached as an `Authorization` header to a host of their choosing. The same credential-forwarding behavior also fires when a victim opens a workspace from a malicious devfile whose `parent.uri` points to an attacker-controlled server, enabling exfiltration of the victim's SCM PAT without direct API access. No fix is available.

The advisory is available at gitlab.eclipse.org. This vulnerability is traded as CVE-2026-86671 since 09/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 7.123.0 eliminates this vulnerability.

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Productinfo

Vendor

• Eclipse

Name

• Che

Version

• 7.122

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

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