# CVE-2026-14336: Eclipse CSI - PIA SSRF and auth bypass via OIDC issuer allowlist prefix check

Source: https://junglewise.ai/threats/cve-2026-14336-eclipse-csi-pia-ssrf-and-auth-bypass-via-oidc-issuer-allowlist  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-14336 · Severity: high · CVSS 8.2 · Published 2026-07-02

Eclipse CSI - PIA, a tool used for managing software bills of materials (SBOMs), contains a security flaw in how it verifies identity tokens. An attacker can bypass security checks by providing a specially crafted web address that appears legitimate but actually points to a server they control. This allows the attacker to trick the system into accepting fraudulent data or making unauthorized connections to external servers.

Technologies: [Eclipse Foundation CSI - PIA](https://junglewise.ai/threats/technologies/csi-pia). Vendors: [Eclipse Foundation](https://junglewise.ai/threats/vendors/eclipse-foundation).

## Quick answers

**Is CVE-2026-14336 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14336 being exploited in the wild.

**How severe is CVE-2026-14336?** High severity, with a CVSS score of 8.2, published 2 July 2026.

**Which products and versions are affected?** Eclipse Foundation CSI - PIA <=0.3.0.

**Is there a fix for CVE-2026-14336?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-14336 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-14336?** Check whether you run Eclipse Foundation CSI - PIA at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in the `is_issuer_known` function within `pia/models.py` of Eclipse CSI - PIA. The application uses a simple `startswith()` string check to validate OIDC issuers (e.g., checking for 'https://ci.eclipse.org') rather than performing proper host-bounded URL validation. An unauthenticated attacker can exploit this by providing a malicious issuer URL using 'userinfo' or 'suffix' tricks (e.g., 'https://ci.eclipse.org.evil.host'). This allows the attacker to trigger a Server-Side Request Forgery (SSRF) during OIDC discovery and JWKS fetching, ultimately leading the application to accept a JWT signed with the attacker's own keys via the `/v1/upload/sbom` endpoint.

## Affected products

- Eclipse Foundation Eclipse CSI - PIA <=0.3.0

## Timeline

- 2026-07-02: disclosed: Initial publication of the CVE record.
- 2026-07-02: advisory

## References

- [https://gitlab.eclipse.org/security/cve-assignment/-/work_items/154](https://gitlab.eclipse.org/security/cve-assignment/-/work_items/154)

## Related threats

- [Eclipse Foundation Eclipse CSI - PIA SSRF via OIDC issuer allowlist bypass](https://junglewise.ai/threats/cve-2026-18353-eclipse-foundation-eclipse-csi-pia-ssrf-via-oidc-issuer-allowlist)
- [Eclipse CSI - PIA log injection in /v1/upload/sbom](https://junglewise.ai/threats/cve-2026-12616-eclipse-csi-pia-log-injection-in-v1-upload-sbom)