CVE-2026-21860
2 advisories.
PyPI/werkzeug CVE-2026-21860: medium 5.3, EPSS 0.47%
Werkzeug safe_join() allows Windows special device names with compound extensions
Action: Upgrade werkzeug to 3.1.5 or later.
pip install werkzeug==3.1.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.1.5 | - |
Fixed versions
| 3.1.5 |
Sources
- osv: GHSA-87hc-h4r5-73f7
- https://github.com/pallets/werkzeug/security/advisories/GHSA-87hc-h4r5-73f7
- https://nvd.nist.gov/vuln/detail/CVE-2026-21860
- https://github.com/pallets/werkzeug/commit/7ae1d254e04a0c33e241ac1cca4783ce6c875ca3
- https://github.com/pallets/werkzeug
CVE-2026-21860 · published · modified · JSON
PyPI/werkzeug CVE-2026-21860: medium 5.3, EPSS 0.47%
Werkzeug safe_join() allows Windows special device names with compound extensions
Action: Upgrade werkzeug to 3.1.5 or later.
pip install werkzeug==3.1.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.1.5 | - |
Fixed versions
| 3.1.5 |
Sources
- osv: PYSEC-2026-2044
- https://github.com/pallets/werkzeug/security/advisories/GHSA-87hc-h4r5-73f7
- https://nvd.nist.gov/vuln/detail/CVE-2026-21860
- https://github.com/pallets/werkzeug/commit/7ae1d254e04a0c33e241ac1cca4783ce6c875ca3
- https://github.com/pallets/werkzeug
- https://pypi.org/project/werkzeug
- https://github.com/advisories/GHSA-87hc-h4r5-73f7
CVE-2026-21860 · published · modified · JSON