Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop
High-risk advisory
CVE-2026-82397
Summary
Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop
Why it matters
GitHub has published a reviewed security advisory for tornado. Prioritize it with other application dependency updates, especially because EPSS places it in the 28% percentile.
Operator check
Check whether tornado is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.4%; percentile: 28%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.