8.8
High
CVE-2026-18353 PIA's `POST /v1/upload/sbom` endpoint accepts a Bearer JWT and checks its **unverified** `iss` claim against an issuer…
Description
PIA's `POST /v1/upload/sbom` endpoint accepts a Bearer JWT and checks its **unverified** `iss` claim against an issuer allowlist using Python's `urlparse` before performing OIDC discovery with `requests`. Because `urlparse` and `requests`/`urllib3` parse an authority string containing a backslash (e.g. `https://attacker-host\@ci.eclipse.org/`) into *different* hostnames, an attacker can craft an issuer that passes the allowlist check yet drives `requests` — and subsequently `urllib.request.urlopen` for JWKS retrieval — to connect to an arbitrary attacker-chosen host, port, and scheme.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Eclipse CSI - PIA 0.4 | 0.4.0 → < 0.6.0 | 0.6.0 |
Other CVEs of Eclipse CSI - PIA
The 5 CVEs of Eclipse CSI - PIA →
CVE-2026-107597
PIA's token verification (`verify_token` in `pia/oidc.py`) fetches the OIDC discovery document of an allowlisted…
5.1
Medium
CVE-2026-108062
Pre-authentication OIDC discovery and JWKS fetches run synchronously on the asyncio event loop, so one unauthenticated…
6.9
Medium
CVE-2026-14336
PIA's OIDC issuer allowlist for Jenkins tokens uses a bare string-prefix check (issuer.startswith('…
8.2
High
CVE-2026-12616
The /v1/upload/sbom endpoint extracts the iss claim from the attacker-supplied JWT with signature verification disabled,…
6.9
Medium