python/python CVE-2026-3276: medium 6.3
Potential DoS via quadratic complexity in unicodedata.normalize()
Action: Upgrade python to 3.10.21 (3.10.x), 3.11.16 (3.11.x), 3.12.14 (3.12.x), 3.13.14 (3.13.x) or 3.14.6 (3.14.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.10.21 | - |
| 3.11.0 | 3.11.16 | - |
| 3.12.0 | 3.12.14 | - |
| 3.13.0 | 3.13.14 | - |
| 3.14.0 | 3.14.6 | - |
Fixed versions
| 3.10.21 | 3.11.16 | 3.12.14 | 3.13.14 | 3.14.6 |
Sources
- python-runtime: PSF-2026-25
- https://mail.python.org/archives/list/security-announce@python.org/thread/PP5HB4K7727OBBM76KA2ILID76K3OZGZ/
- https://www.cve.org/CVERecord?id=CVE-2026-3276
CVE-2026-3276 · published · modified · JSON