CVE-2026-3276

Published: Giu 03, 2026 Last Modified: Giu 03, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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.

407

Inefficient Algorithmic Complexity

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Low
View CWE Details
https://github.com/python/cpython/issues/149079
https://github.com/python/cpython/issues/149079
https://github.com/python/cpython/pull/149080
https://github.com/python/cpython/pull/149080
https://mail.python.org/archives/list/security-announce@pyt…
https://mail.python.org/archives/list/[email protected]/thread/PP5HB…