CVE-2026-91990
1 advisory.
PyPI/tornado CVE-2026-91990: medium
tornado: multipart split() creates huge temp list before max_parts check -> memory amplification DoS (httputil.py:34)
Action: Upgrade tornado to 6.5.8 or later.
pip install tornado==6.5.8Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 6.5.8 | - |
Fixed versions
| 6.5.8 |
Sources
- osv: GHSA-8423-8fgw-73vq
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-8423-8fgw-73vq
- https://github.com/tornadoweb/tornado/pull/3704
- https://github.com/tornadoweb/tornado/commit/de85b3f87446e323e881bbaa3d5a74f4b76e5f05
- https://gist.github.com/afldl/649861f25d39b53b7edbe0298e171617
- https://github.com/tornadoweb/tornado
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.8
CVE-2026-91990 · published · modified · JSON