CVE-2026-91991 Tornado before 6.5.8 Cookie Attribute Injection via Capitalized kwargs
| Reporter | Title | Published | Views | Family All 37 |
|---|---|---|---|---|
 | CVE-2026-91991 | 15 Sep 202615:18 | – | cve |
 | CVE-2026-91991 | 15 Sep 202615:18 | – | debiancve |
 | EUVD-2026-78663 | 15 Sep 202615:18 | – | euvd |
 | CVE-2026-91991 | 15 Sep 202615:18 | – | mend |
 | CVE-2026-91991 | 15 Sep 202616:17 | – | nvd |
 | Security update for python-tornado6 (important) | 18 Oct 202600:00 | – | opensuse |
 | BELL-CVE-2026-91991 | 18 Sep 202606:06 | – | osv_bell |
| CLEANSTART-2026-OZ84157 Tornado before 6 | 24 Sep 202606:51 | – | osv_cleanstart |
| DEBIAN-CVE-2026-91991 | 15 Sep 202616:17 | – | osv_debian |
| GHSA-WWV5-G3V4-889X Tornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie` | 1 Sep 202620:17 | – | osv_ghsa |
10
[
{
"vendor": "tornadoweb",
"product": "tornado",
"defaultStatus": "unaffected",
"versions": [
{
"versionType": "semver",
"version": "6.5.5",
"lessThan": "6.5.8",
"status": "affected"
},
{
"versionType": "semver",
"version": "6.5.8",
"status": "unaffected"
}
],
"packageURL": "pkg:pypi/tornado"
}
]Data
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08 Oct 2026 15:26Current
CVSS 3.15.4
CVSS 46.3
EPSS0.00247
SSVC