How severe is CVE-2013-2100?

No CVSS score has been assigned to CVE-2013-2100 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2013-2100?

CVE-2013-2100 affects the following packages: portage (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2013-2100?

Update portage to 2.1.12.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-2100 is resolved across your whole dependency graph.

How do I detect CVE-2013-2100 in my PyPI dependencies?

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

How do I mitigate CVE-2013-2100 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-2013-2100 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2013-2100, including 1 in-the-wild exploitation 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-2013-2100?

CVE-2013-2100 has an EPSS (Exploit Prediction Scoring System) score of 1.6%, placing it in the 75th 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-2013-2100?

CVE-2013-2100 is classified as CWE-310 (CWE-310). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2013-2100 published, and has it been updated?

CVE-2013-2100 was published on May 17, 2022 and was last updated on November 22, 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

CVE-2013-2100 — portage

CVE-2013-2100 is a CWE-310 vulnerability in portage. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for portage — see the affected versions and patch details below.

Gentoo Portage does not verify X.509 certificates from SSL servers

Published

May 17, 2022

Updated

Nov 22, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

🐍portage

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

The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and modify binary package lists via a crafted certificate.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`portage`	all versions	2.1.12.2`pip install --upgrade 'portage==2.1.12.2'`

Affected Products

1 product · 1 configurations

Application

portagegentoo

1 version

2.1.12

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.

The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2…

openwall.comNVDAug 2017

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for portage, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update portage to 2.1.12.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-2100 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

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Find it across PyPI, including transitive dependencies.

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