TI-2026-76786 Aliases CVE-2026-107597

Server-side request forgery in Eclipse CSI PIA via OIDC jwks_uri

LOW 23CWE-918Published 2026-10-20 · Updated 2026-10-20

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Eclipse CSI PIA from 0 through 0.8.0 follows the jwks_uri in an OIDC discovery document without checking its origin or scheme, which is a server-side request forgery (CWE-918). An approved identity provider can make PIA send GET requests to arbitrary hosts and ports, including over plaintext HTTP. The fetch happens before signature verification, so an unauthenticated upload request triggers it even though the request is rejected with 401.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

PIA's token verification (`verify_token` in `pia/oidc.py`) fetches the OIDC discovery document of an allowlisted issuer and then follows the `jwks_uri` contained in that response without parsing it as a URL, comparing it against the approved issuer's origin, or requiring HTTPS — the only check is that the field is non-empty (`pia/oidc.py:42-52`). An approved identity provider — and every registered per-project Jenkins instance under `https://ci.eclipse.org/<project>/oidc` is a separate such party (`pia/models.py`) — can therefore direct PIA to issue a GET request to an arbitrary host and port, including over plaintext `http`, from PIA's own network position. The fetch happens before any signature is verified, as a side effect of an unauthenticated `POST /v1/upload/sbom` request that is ultimately rejected with 401.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00359 29th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Eclipse Foundation	Eclipse CSI - PIA	up to 0.8.0	—	No fix listed	CNA

Eclipse CSI - PIA VendorEclipse Foundation Affected up to 0.8.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Eclipse CSI - PIA.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-20 Threatist record created from CVE-2026-107597
2026-10-20 CISA SSVC decision points changed

References

Other 2

TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
TI-2026-81947 Unauthenticated command injection in Eclipse Che che-machine-exec CVSS 3.1CRITICAL 9.8
TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3

See all 466 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences