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Not in CISA KEV
HIGH severity

CVE-2010-4340 — apache-libcloud

HIGHFix: apache/libcloud@87ee61e

CVE-2010-4340 is a high-severity (CVSS 7.5) CWE-264 vulnerability in apache-libcloud. A fix is available for apache-libcloud — see the affected versions and patch details below.

Apache Libcloud does not verify SSL certificates for HTTPS connections

Also known asGHSA-w3j6-8j34-q43xPYSEC-2011-24
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk-0.01%
Lower risk than most CVEs72th percentile — riskier than 72% of all scored CVEsHighest risk
0.00%0.63%1.26%1.89%0.2%1.4%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍apache-libcloud

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

libcloud before 0.4.0 does not verify SSL certificates for HTTPS connections, which allows remote attackers to spoof certificates and bypass intended access restrictions via a man-in-the-middle (MITM) attack. This is due to an upstream issue with python's SSL module rather than directly with libcloud.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIapache-libcloudall versions0.4.0pip install --upgrade 'apache-libcloud==0.4.0'

Affected Products

1 product · 4 configurations
Application
libcloudapache
≤ 0.4.0
3 versions
0.2.00.3.00.3.1

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update apache-libcloud to 0.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2010-4340 is resolved across your whole dependency graph.

  3. 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

libcloud before 0.4.0 does not verify SSL certificates for HTTPS connections, which allows remote attackers to spoof certificates and bypass intended access restrictions via a man-in-the-middle (MITM) attack. This is due to an upstream issue with python's SSL module rather than directly with libcloud.
O3 Security · Impact-Aware SCA

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CVE-2010-4340: apache-libcloud — Fixed in 0.4.0