CVE-2026-55418

Summary: CVE-2026-55418 affects FastGPT prior to v4.15.0-beta5, where two FastGPT file handlers authorize an unrelated resource and then sign or read an S3 object using a key taken directly from the request. The key’s association with the caller’s team is not validated, allowing cross-team file d...

CVE-2026-55418

FastGPT is an open source AI knowledge base platform. Prior to v4.15.0-beta5, two FastGPT file handlers authorize an unrelated resource and then sign or read an S3 object using a key taken directly from the request, without checking that the key belongs to the caller's team. Because S3 object key...