How severe is CVE-2018-13390?

CVE-2018-13390 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2018-13390?

CVE-2018-13390 affects the following packages: cloudtoken (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2018-13390?

Update cloudtoken to 0.1.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-13390 is resolved across your whole dependency graph.

How do I detect CVE-2018-13390 in my PyPI dependencies?

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

How do I mitigate CVE-2018-13390 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.

How does O3 Security protect against CVE-2018-13390?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2018-13390 can be triaged on real exposure rather than presence alone.

Is CVE-2018-13390 actively exploited in the wild?

No public exploit code has been indexed for CVE-2018-13390 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2018-13390?

CVE-2018-13390 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 40th 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.

When was CVE-2018-13390 published, and has it been updated?

CVE-2018-13390 was published on May 13, 2022 and was last updated on September 13, 2024. 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

MEDIUM severity

CVE-2018-13390 — cloudtoken

MEDIUM

CVE-2018-13390 is a medium-severity (CVSS 6.1) vulnerability in cloudtoken. A fix is available for cloudtoken — see the affected versions and patch details below.

Cloudtoken Insufficiently Protects Credentials

Also known asPYSEC-2018-1

Published

May 13, 2022

Updated

Sep 13, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 18, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs40th percentile — riskier than 40% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

CVE-2018-13390 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected

🐍cloudtoken

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

Unauthenticated access to cloudtoken daemon on Linux via network from version 0.1.1 before version 0.1.24 allows attackers on the same subnet to gain temporary AWS credentials for the users' roles.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`cloudtoken`	≥ 0.1.1&&< 0.1.24	0.1.24`pip install --upgrade 'cloudtoken==0.1.24'`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cloudtoken, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update cloudtoken to 0.1.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-13390 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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2018-13390 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2018-13390. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Unauthenticated access to cloudtoken daemon on Linux via network from version 0.1.1 before version 0.1.24 allows attackers on the same subnet to gain temporary AWS credentials for the users' roles.

O3 Security · Impact-Aware SCA

Is CVE-2018-13390 in your dependencies?

O3 Security finds CVE-2018-13390 across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works