| Name | CVE-2026-91991 |
| Description | Tornado before 6.5.8 contains an incomplete fix for cookie attribute i ... |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python-tornado (PTS) | bookworm, bookworm (security) | 6.2.0-3+deb12u4 | vulnerable |
| trixie (security), trixie | 6.4.2-3+deb13u2 | fixed |
| forky, sid | 6.5.5-5 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[trixie] - python-tornado <not-affected> (Incomplete fix for CVE-2026-35536 not applied)
https://github.com/tornadoweb/tornado/security/advisories/GHSA-wwv5-g3v4-889x
CVE exists because of an incomplete fix for CVE-2026-35536