How severe is CVE-2012-3361?

No CVSS score has been assigned to CVE-2012-3361 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2012-3361?

CVE-2012-3361 affects the following packages: nova (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2012-3361?

Update nova to 12.0.0a0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-3361 is resolved across your whole dependency graph.

How do I detect CVE-2012-3361 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nova, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2012-3361 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2012-3361 actively exploited in the wild?

Yes. There are 2 known exploit references for CVE-2012-3361, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2012-3361?

CVE-2012-3361 has an EPSS (Exploit Prediction Scoring System) score of 2.6%, placing it in the 85th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2012-3361?

CVE-2012-3361 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2012-3361 published, and has it been updated?

CVE-2012-3361 was published on July 22, 2012 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

CVE-2012-3361 — nova

Fix: openstack/nova@2427d4a

CVE-2012-3361 is a CWE-264 vulnerability in nova. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for nova — see the affected versions and patch details below.

OpenStack Nova Arbitrary file injection/corruption through directory traversal issues

Also known asGHSA-cm54-3vvf-f5p8

Published

Jul 22, 2012

Updated

Apr 10, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

2 known

Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs85th percentile — riskier than 85% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍nova

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

virt/disk/api.py in OpenStack Compute (Nova) Folsom (2012.2), Essex (2012.1), and Diablo (2011.3) allows remote authenticated users to overwrite arbitrary files via a symlink attack on a file in an image.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`nova`	all versions	12.0.0a0`pip install --upgrade 'nova==12.0.0a0'`

Affected Products

3 products · 3 configurations

Application

diabloopenstack

1 version

2011.3

Application

essexopenstack

1 version

2012.1

Application

folsomopenstack

1 version

2012.2

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

virt/disk/api.py in OpenStack Compute (Nova) Folsom (2012.2), Essex (201…

github.comNVDAug 2012

Report on github.com

github.comNVDAug 2012

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nova, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nova to 12.0.0a0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-3361 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2012-3361 in your dependencies?

Find it across PyPI, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVE-2012-3361 — nova

EPSS Exploitation Probability

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2012-3361 in your dependencies?