CVE-2026-91991
python-tornado: incomplete fix for cookie attribute injection allows for cookie validation bypass via semicolon-
CVE-2026-91991 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:4403-1, released September 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
16th percentile
incomplete fix for cookie attribute injection allows for cookie validation bypass via semicolon-
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-tornado · sles 15.6 | 4.5.3-150000.3.31.1 | SUSE-SU-2026:4404-1 | Sep 30, 2026 |
| python-tornado · sles 15.7 | 4.5.3-150000.3.31.1 | SUSE-SU-2026:4404-1 | Sep 30, 2026 |
| python-tornado6 · opensuse-leap 16.0 | 6.5-160000.7.1 | OPENSUSE-SU-2026:22059-1 | Nov 7, 2026 |
| python-tornado6 · sles 15.6 | 6.3.2-150400.9.27.1 | SUSE-SU-2026:4403-1 | Sep 30, 2026 |
| python-tornado6 · sles 15.7 | 6.3.2-150400.9.27.1 | SUSE-SU-2026:4403-1 | Sep 30, 2026 |
| python-tornado6 · sles 16.0 | 6.5-160000.7.1 | SUSE-SU-2026:24207-1 | Nov 7, 2026 |
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