FL
Product
flask
by pallets · last CVE Feb 21, 2026
1
CVEs
0
On KEV
4.3
Max CVSS
0
New 30D
Severity mix
Critical 0High 0Medium 1Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-27205
4.3
0%
Feb 21
Flask session does not add `Vary: Cookie` header when accessed in some ways
Affected: < 3.1.3
Showing 1