How severe is GHSA-32gv-6cf3-wcmq?

No CVSS score has been assigned to GHSA-32gv-6cf3-wcmq yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-32gv-6cf3-wcmq?

GHSA-32gv-6cf3-wcmq affects the following packages: twisted (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-32gv-6cf3-wcmq?

Update twisted to 19.10.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-32gv-6cf3-wcmq is resolved across your whole dependency graph.

How do I detect GHSA-32gv-6cf3-wcmq in my PyPI dependencies?

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

How do I mitigate GHSA-32gv-6cf3-wcmq 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 GHSA-32gv-6cf3-wcmq actively exploited in the wild?

No public exploit code has been indexed for GHSA-32gv-6cf3-wcmq 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-32gv-6cf3-wcmq published, and has it been updated?

GHSA-32gv-6cf3-wcmq was published on March 14, 2022 and was last updated on February 18, 2025. 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

HTTP/2 DoS Attacks: Ping, Reset, and Settings FloodsGHSA-32gv-6cf3-wcmq

Fix: twisted/twisted@a40ab1c

GHSA-32gv-6cf3-wcmq is a security vulnerability in twisted. A fix is available for twisted — see the affected versions and patch details below.

Published

Mar 14, 2022

Updated

Feb 18, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Feb 18, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🐍twisted

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

Twisted web servers that utilize the optional HTTP/2 support suffer from the following flow-control related vulnerabilities:

Ping flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9512 Reset flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9514 Settings flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9515

A Twisted web server supports HTTP/2 requests if you've installed the http2 optional dependency set.

Workarounds

There are no workarounds.

References

https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md

For more information

If you have any questions or comments about this advisory:

Open an issue in Twisted's Trac

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`twisted`	all versions	19.10.0`pip install --upgrade 'twisted==19.10.0'`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for twisted, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update twisted to 19.10.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-32gv-6cf3-wcmq 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

### Impact Twisted web servers that utilize the optional HTTP/2 support suffer from the following flow-control related vulnerabilities: Ping flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9512 Reset flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9514 Settings flood: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9515 A Twisted web server supports HTTP/2 requests if you've installed the [`http2` optional dependency set](https://twistedmatrix.com/documents/19.2.0/installation/howto/optional.html). ### Workarounds There are no workarounds. ### Referenc

O3 Security · Impact-Aware SCA

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