PyPI/tornado CVE-2026-82397: high 7.5, EPSS 0.35%
Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop
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-mpf4-983q-p7j4
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-mpf4-983q-p7j4
- https://nvd.nist.gov/vuln/detail/CVE-2026-82397
- https://github.com/tornadoweb/tornado/pull/3704
- https://github.com/tornadoweb/tornado/commit/8d6363ed7b69d5f0da806efe34d256627a2191de
- https://github.com/tornadoweb/tornado
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.8
CVE-2026-82397 · published · modified · JSON