LOWPyPI →
Tornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie`
Tornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie`
Affected packages
- tornado— 6.5.5 → 6.5.8
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-wwv5-g3v4-889x
- https://github.com/tornadoweb/tornado/pull/3704
- https://github.com/tornadoweb/tornado/pull/3706
- https://github.com/tornadoweb/tornado/commit/6ef836e43e1278530041376adb32504daa977b91
- https://github.com/tornadoweb/tornado/commit/da284767eae8e1f0484f123b8c3225f6465b09c7
- https://github.com/tornadoweb/tornado
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.8
Structured record: https://osv.dev/vulnerability/GHSA-wwv5-g3v4-889x
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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