MediumVulnerabilityCVE-2026-115927updated 28 Oct 2026, 22:44 UTC
Tornado: Event loop blocking and excess memory use from chunked bodies with many small chunks
Fixed in tornado 6.6Official source
| Severity | MediumCVSS 5.3 of 10 |
|---|---|
| Being exploited? | UnclearNo reports either way yet |
| Fix available? | Yestornado 6.6 · since 28 Oct 2026 |
| How sure is this? | Official sourceBacked by an official source |
Are you affected?
| Package / product | Affected versions | Fixed in |
|---|---|---|
| tornado · pip | < 6.6 | 6.6 |
Timeline
- 28 Oct 2026, 22:43 UTCPublicly disclosed
- 28 Oct 2026, 22:43 UTCReported by GitHub Advisory · GitHub Advisory
- 28 Oct 2026, 22:44 UTCPicked up by Zero Radar
Sources 1 report, oldest first
Official vendor, government CERT or advisory database
- Tornado: Event loop blocking and excess memory use from chunked bodies with many small chunksGitHub Advisory · 28 Oct 2026, 22:43 UTC
Technical details
- ID
- CVE-2026-115927 · GHSA-r4j5-9xpp-3985
- CVSS
- 5.3 / 10
- EPSS
- 0.4% chance of exploitation within 30 days
- Disclosed
- 28 Oct 2026, 22:43 UTC
- On Zero Radar
- 28 Oct 2026, 22:44 UTC (0 min after disclosure)
- Last change
- 28 Oct 2026, 22:44 UTC
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