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WE
Product
werkzeug
by pallets · last CVE Sep 29, 2026
4
CVEs
0
On KEV
6.3
Max CVSS
1
New 30D
Vulnerabilities4In the news0Timeline
Severity mix
Critical 0High 0Medium 4Low 0
Severity
All severities4Critical0High0Medium4Low0
Exploitation
On CISA KEV0Exploited in the wild0
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Add werkzeug to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-102598
6.3
0%
Sep 29
Werkzeug safe_join() allows Windows special device names
Affected: < 3.1.9
CVE-2026-27199
5.3
1%
Feb 21
Werkzeug safe_join() allows Windows special device names
Affected: < 3.1.6
CVE-2026-21860
5.3
0%
Jan 8
Werkzeug safe_join() allows Windows special device names with compound extensions
Affected: < 3.1.5
CVE-2025-66221
5.3
1%
Nov 29
Werkzeug safe_join() allows Windows special device names
Affected: < 3.1.4
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