How severe is GHSA-xhw9-4wqq-x67v?

GHSA-xhw9-4wqq-x67v has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-xhw9-4wqq-x67v?

GHSA-xhw9-4wqq-x67v affects the following packages: rdiffweb (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-xhw9-4wqq-x67v?

Update rdiffweb to 2.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xhw9-4wqq-x67v is resolved across your whole dependency graph.

How do I detect GHSA-xhw9-4wqq-x67v in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for rdiffweb. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-xhw9-4wqq-x67v 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-xhw9-4wqq-x67v?

O3 pinpoints whether GHSA-xhw9-4wqq-x67v is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-xhw9-4wqq-x67v actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-xhw9-4wqq-x67v, 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 GHSA-xhw9-4wqq-x67v?

GHSA-xhw9-4wqq-x67v has an EPSS (Exploit Prediction Scoring System) score of 0.9%, placing it in the 56th 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 GHSA-xhw9-4wqq-x67v published, and has it been updated?

GHSA-xhw9-4wqq-x67v was published on September 27, 2022 and was last updated on October 16, 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

GHSA-xhw9-4wqq-x67v

HIGH

rdiffweb vulnerable to potential DoS via memory consumption

Also known asCVE-2022-3298PYSEC-2022-294

Published

Sep 27, 2022

Updated

Oct 16, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

0.9%probability of exploitation in next 30 days

Lower Risk56th percentile+0.59%

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.

Blast Radius

1 pkg affected

🐍rdiffweb

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

rdiffweb prior to 2.4.8 is vulnerable to a potential Dos attack via an unlimited length "title" field when adding an SSH key. This can result in excess memory consumption, leading to a Denial of Service (DoS). This issue is patched in version 2.4.8. There are no known workarounds.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`rdiffweb`	all versions	2.4.8

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.

Allocation of Resources Without Limits or Throttling in GitHub repositor…

huntr.devNVDSep 2022

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for rdiffweb. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update rdiffweb to 2.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xhw9-4wqq-x67v 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 pinpoints whether GHSA-xhw9-4wqq-x67v is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-xhw9-4wqq-x67v. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-xhw9-4wqq-x67v in your dependencies?

O3 detects GHSA-xhw9-4wqq-x67v across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works