Debian/python3.13: unknown
unicodedata.normalize() can take excessive CPU time when processing specially crafted Unicode input containing long runs of combining characters with alternating Canonical Combining Class values. This
Action: Upgrade python3.13 to 3.13.5-2+deb13u3 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.13.5-2+deb13u3 | - |
Fixed versions
| 3.13.5-2+deb13u3 |
Sources
- osv: DEBIAN-CVE-2026-3276#Debian:13/python3.13
- https://security-tracker.debian.org/tracker/CVE-2026-3276
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