This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [starlette](https://redirect.github.com/encode/starlette) ([changelog](https://www.starlette.io/release-notes/)) | `==0.38.4` -> `==0.40.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | ### GitHub Vulnerability Alerts #### [CVE-2024-47874](https://redirect.github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw) ### Summary Starlette treats `multipart/form-data` parts without a `filename` as text form fields and buffers those in byte strings with no size limit. This allows an attacker to upload arbitrary large form fields and cause Starlette to both slow down significantly due to excessive memory allocations and copy operations, and also consume more and more memory until the server starts swapping and grinds to a halt, or the OS terminates the server process with an OOM error. Uploading multiple such requests in parallel may be enough to render a service practically unusable, even if reasonable request size limits are enforced by a reverse proxy in front of Starlette. ### PoC ```python from starlette.applications import Starlette from starlette.routing import Route async def poc(request): async with request.form(): pass app = Starlette(routes=[ Route('/', poc, methods=["POST"]), ]) ``` ```sh curl http://localhost:8000 -F 'big=</dev/urandom' ``` ### Impact This Denial of service (DoS) vulnerability affects all applications built with Starlette (or FastAPI) accepting form requests. --- ### Release Notes <details> <summary>encode/starlette (starlette)</summary> ### [`v0.40.0`](https://redirect.github.com/encode/starlette/releases/tag/0.40.0): Version 0.40.0 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.39.2...0.40.0) This release fixes a Denial of service (DoS) via `multipart/form-data` requests. You can view the full security advisory: [GHSA-f96h-pmfr-66vw](https://redirect.github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw) #### Fixed - Add `max_part_size` to `MultiPartParser` to limit the size of parts in `multipart/form-data` requests [fd038f3](https://redirect.github.com/encode/starlette/commit/fd038f3070c302bff17ef7d173dbb0b007617733). ### [`v0.39.2`](https://redirect.github.com/encode/starlette/releases/tag/0.39.2): Version 0.39.2 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.39.1...0.39.2) ##### Fixed - Allow use of `request.url_for` when only "app" scope is available [#&#8203;2672](https://redirect.github.com/encode/starlette/pull/2672). - Fix internal type hints to support `python-multipart==0.0.12` [#&#8203;2708](https://redirect.github.com/encode/starlette/pull/2708). *** **Full Changelog**: https://github.com/encode/starlette/compare/0.39.1...0.39.2 ### [`v0.39.1`](https://redirect.github.com/encode/starlette/releases/tag/0.39.1): Version 0.39.1 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.39.0...0.39.1) #### Fixed - Avoid regex re-compilation in `responses.py` and `schemas.py` [#&#8203;2700](https://redirect.github.com/encode/starlette/pull/2700). - Improve performance of `get_route_path` by removing regular expression usage [#&#8203;2701](https://redirect.github.com/encode/starlette/pull/2701). - Consider `FileResponse.chunk_size` when handling multiple ranges [#&#8203;2703](https://redirect.github.com/encode/starlette/pull/2703). - Use `token_hex` for generating multipart boundary strings [#&#8203;2702](https://redirect.github.com/encode/starlette/pull/2702). *** **Full Changelog**: https://github.com/encode/starlette/compare/0.39.0...0.39.1 ### [`v0.39.0`](https://redirect.github.com/encode/starlette/releases/tag/0.39.0): Version 0.39.0 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.38.6...0.39.0) #### Added - Add support for HTTP Range to `FileResponse` [#&#8203;2697](https://redirect.github.com/encode/starlette/pull/2697) *** **Full Changelog**: https://github.com/encode/starlette/compare/0.38.6...0.39.0 ### [`v0.38.6`](https://redirect.github.com/encode/starlette/releases/tag/0.38.6): Version 0.38.6 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.38.5...0.38.6) #### Fixed - Close unclosed `MemoryObjectReceiveStream` in `TestClient` [#&#8203;2693](https://redirect.github.com/encode/starlette/pull/2693). *** **Full Changelog**: https://github.com/encode/starlette/compare/0.38.5...0.38.6 ### [`v0.38.5`](https://redirect.github.com/encode/starlette/releases/tag/0.38.5): Version 0.38.5 [Compare Source](https://redirect.github.com/encode/starlette/compare/0.38.4...0.38.5) #### Fixed - Schedule `BackgroundTasks` from within `BaseHTTPMiddleware` [#&#8203;2688](https://redirect.github.com/encode/starlette/pull/2688). This behavior was removed in 0.38.3, and is now restored. *** **Full Changelog**: https://github.com/encode/starlette/compare/0.38.4...0.38.5 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "" in timezone Etc/UTC, Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR was generated by [Mend Renovate](https://mend.io/renovate/). View the [repository job log](https://developer.mend.io/github/canonical/snapcraft). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC4xMjAuMSIsInVwZGF0ZWRJblZlciI6IjM4LjEyMC4xIiwidGFyZ2V0QnJhbmNoIjoiaG90Zml4LzguNCIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiXX0=-->