UNKNOWN Microsoft

CVE-2026-27199

Werkzeug safe_join() allows Windows special device names

Microsoft Security Update 2026-Feb: Werkzeug safe_join() allows Windows special device names

Affected Products

azl3 python-werkzeug 3.0.3-2 on Azure Linux 3.0
cbl2 python-werkzeug 2.3.7-3 on CBL Mariner 2.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27199
https://nvd.nist.gov/vuln/detail/CVE-2026-27199

Published: 2026-02-10 · Source: Microsoft · Feed updated: 2026-10-04

This unknown severity vulnerability was published on 2026-02-10 via Microsoft. Affected: azl3 python-werkzeug 3.0.3-2 on Azure Linux 3.0, cbl2 python-werkzeug 2.3.7-3 on CBL Mariner 2.0.

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