PYSEC-2026-879

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/nova/PYSEC-2026-879.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-879
Aliases
Published
2026-07-06T08:03:23Z
Modified
2026-07-07T11:45:49Z
Summary
OpenStack Nova Denial of Service in network source security groups
Details

Algorithmic complexity vulnerability in OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-3 does not properly handle network source security group policy updates, which allows remote authenticated users to cause a denial of service (nova-network consumption) via a large number of server-creation operations, which triggers a large number of update requests.

References

Affected packages

PyPI / nova

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
12.0.0a0

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/nova/PYSEC-2026-879.yaml"