CVE-2026-3276

ADVISORY - nist

Summary

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 affects all normalization forms.

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-407⁠

Inefficient Algorithmic Complexity

Impacted images

Advisories

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