CVE-2026-3276

Severity CVSS v4.0:

MEDIUM

Type:

Unavailable / Other

Publication date:

03/06/2026

Last modified:

03/06/2026

Description

unicodedata.normalize() can take excessive CPU time when processing<br /> specially crafted Unicode input containing long runs of combining characters<br /> with alternating Canonical Combining Class values.<br /> This affects all normalization forms.

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 6.30 MEDIUM
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): Low
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0

6.30

Severity 4.0

MEDIUM

CVE-2026-3276

Description

Impact

References to Advisories, Solutions, and Tools