How severe is GHSA-c58j-88f5-h53f?

GHSA-c58j-88f5-h53f has a CVSS score of 5.6/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-c58j-88f5-h53f?

GHSA-c58j-88f5-h53f affects the following packages: pycares (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-c58j-88f5-h53f?

Update pycares to 4.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c58j-88f5-h53f is resolved across your whole dependency graph.

How do I detect GHSA-c58j-88f5-h53f in my PyPI dependencies?

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

How do I mitigate GHSA-c58j-88f5-h53f 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 GHSA-c58j-88f5-h53f?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-c58j-88f5-h53f can be triaged on real exposure rather than presence alone.

Is GHSA-c58j-88f5-h53f actively exploited in the wild?

No public exploit code has been indexed for GHSA-c58j-88f5-h53f 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.

When was GHSA-c58j-88f5-h53f published, and has it been updated?

GHSA-c58j-88f5-h53f was published on July 5, 2022 and was last updated on December 8, 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

GHSA-c58j-88f5-h53f — pycares

MEDIUM

GHSA-c58j-88f5-h53f is a medium-severity (CVSS 5.6) vulnerability in pycares. A fix is available for pycares — see the affected versions and patch details below.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in pycares

Published

Jul 5, 2022

Updated

Dec 8, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Dec 8, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🐍pycares

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

Impact

pycares versions < 4.2.0 are affected by CVE-2021-3672.

Patches

Update to version 4.2.0.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`pycares`	all versions	4.2.0`pip install --upgrade 'pycares==4.2.0'`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pycares, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update pycares to 4.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c58j-88f5-h53f 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 GHSA-c58j-88f5-h53f can be triaged on real exposure rather than presence alone.

Tailored to GHSA-c58j-88f5-h53f. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact pycares versions < 4.2.0 are affected by [CVE-2021-3672](https://nvd.nist.gov/vuln/detail/CVE-2021-3672). ### Patches Update to version 4.2.0.

O3 Security · Impact-Aware SCA

Is GHSA-c58j-88f5-h53f in your dependencies?

O3 Security finds GHSA-c58j-88f5-h53f 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