BIT-python-2026-3276

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/python/BIT-python-2026-3276.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-python-2026-3276
Aliases
Published
2026-06-05T13:04:10.450Z
Modified
2026-08-19T09:45:26.099353927Z
Summary
Potential DoS via quadratic complexity in unicodedata.normalize()
Details

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.

Database specific 
{
    "severity": "Medium",
    "cpes": [
        "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / python

Package

Name
python
Purl
pkg:bitnami/python

Severity

  • 6.3 (Medium) CVSS_V4 - 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.10.21
Introduced
3.11.0
Fixed
3.11.16
Introduced
3.12.0
Fixed
3.12.14
Introduced
3.13.0
Fixed
3.13.14
Introduced
3.14.0
Fixed
3.14.6

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/python/BIT-python-2026-3276.json"