CVE-2026-18353

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...

CVE-2026-18353

PIA’s POST /v1/upload/sbom validates a Bearer JWT by checking the unverified iss against an issuer allowlist using urlparse, then performs OIDC discovery with requests. A backslash in the authority (e.g., https://[email protected]/) is parsed into different hostnames, enabling an attac...