CVE-2013-6437: PYSEC-2026-874 - OpenStack Nova DoS through ephemeral disk backing files

CVE-2013-6437 · Severity: info · Published 2026-07-06

OpenStack Nova DoS through ephemeral disk backing files

Technologies: nova (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2013-6437 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2013-6437 being exploited in the wild.
How severe is CVE-2013-6437?
Informational severity, published 6 July 2026.
Which products and versions are affected?
nova (PyPI) ECOSYSTEM:introduced=0,fixed=12.0.0a0.
Is there a fix for CVE-2013-6437?
Yes. nova (PyPI): upgrade to 12.0.0a0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2013-6437?
Check whether you run nova (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • nova (PyPI): upgrade to 12.0.0a0 or later
    pip install "nova>=12.0.0a0"

Affected products

  • nova (PyPI) ECOSYSTEM:introduced=0,fixed=12.0.0a0

Identifiers

  • CVE-2013-6437
  • GHSA-hrv9-4x4c-9jc8
  • PYSEC-2026-874

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