Eclipse CSI up to 0.3.0 server-side request forgery

Summaryinfo

A vulnerability was found in Eclipse CSI up to 0.3.0. It has been classified as critical. The affected element is an unknown function. The manipulation leads to server-side request forgery. This vulnerability is documented as CVE-2026-14336. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Eclipse CSI up to 0.3.0. It has been rated as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

PIA's OIDC issuer allowlist for Jenkins tokens uses a bare string-prefix check (issuer.startswith(' https://ci.eclipse.org ') in is_issuer_known, pia/models.py:139) instead of validating the issuer as a properly host-bounded URL. An attacker can craft an issuer such as https://[email protected] (userinfo trick) or https://ci.eclipse.org.evil.host (suffix trick) that satisfies the prefix check while pointing the OIDC discovery and JWKS fetches at a server the attacker controls. An unauthenticated caller of POST /v1/upload/sbom can use this to force PIA to make outbound HTTP(S) requests to an arbitrary attacker-chosen host, and to have oidc.verify_token accept a JWT signed with the attacker's own key.

The advisory is shared at gitlab.eclipse.org. The identification of this vulnerability is CVE-2026-14336 since 07/01/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/02/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Eclipse

Name

• CSI

Version

• 0.1
• 0.2
• 0.3.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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