GHSA-5mj6-643f-2g85 CVE-2013-2256 PYSEC-2026-866

OpenStack Compute (Nova) allows remote authenticated users to obtain sensitive information

Medium PyPI

Severity: Medium; The publisher's own rating, not a CVSS score
Exploit chance (EPSS): 1.84%; Chance of exploitation in the next 30 days. Higher than 79.03% of scored vulnerabilities.
Known exploited: No; Not in CISA's catalog
Weakness: —; Not classified
Fix: 2013.1.3; Upgrade nova to this version or later

Description

OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-2 does not properly enforce the os-flavor-access:is_public property, which allows remote authenticated users to obtain sensitive information (flavor properties), boot arbitrary flavors, and possibly have other unspecified impacts by guessing the flavor id.

Affected versions

PyPI

Package	Vulnerable	Fixed in
nova	`< 2013.1.3`	`2013.1.3`

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

nova PyPI → `2013.1.3`

pip

pip install --upgrade "nova>=2013.1.3"

poetry

poetry add "nova>=2013.1.3"

uv

uv add "nova>=2013.1.3"

References

Advisories

Packages

Timeline

May 14, 2022 Published
Sep 10, 2026 Last updated by the source
Nov 1, 2026 Latest EPSS score

Advisory	Severity	Why it's related
GHSA-mfg3-p6m3-gjgr OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints	High	Also affects nova
GHSA-m4f3-qp2w-gwh6 OpenStack Nova calls qemu-img without format restrictions for resize	High	Also affects nova
GHSA-rm86-h44c-2r2m OpenStack Nova vulnerable to unauthorized access to potentially sensitive data	Medium	Also affects nova
GHSA-r4v4-w9pv-6fph OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access	Medium	Also affects nova
GHSA-7h75-hwxx-qpgc OpenStack Cinder, glance, and Nova vulnerable to Path Traversal	Medium	Also affects nova
GHSA-v725-c588-h936 OpenStack Nova Changing vnic_type breaks compute service restart	Low	Also affects nova
GHSA-22jm-4hxw-35jf OpenStack Nova can leak consoleauth token into log files	Low	Also affects nova
GHSA-43cm-73px-5v4m OpenStack Compute (Nova) Resource limit circumvention in Nova private flavors	Low	Also affects nova

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