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.

EPSS Score⁠: 0.00492 (0.384)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-407⁠

Inefficient Algorithmic Complexity

ADVISORY - redhat

CWE-606⁠

Unchecked Input for Loop Condition

Impacted images

Advisories

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