How severe is GHSA-8wxf-c45w-g66g?

GHSA-8wxf-c45w-g66g has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-8wxf-c45w-g66g?

GHSA-8wxf-c45w-g66g affects the following packages: rdiffweb (PyPI). Ecosystems affected: PyPI.

How do I fix GHSA-8wxf-c45w-g66g?

Update rdiffweb to 2.4.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8wxf-c45w-g66g is resolved across your whole dependency graph.

How do I detect GHSA-8wxf-c45w-g66g 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-8wxf-c45w-g66g 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-8wxf-c45w-g66g?

O3 pinpoints whether GHSA-8wxf-c45w-g66g 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-8wxf-c45w-g66g actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-8wxf-c45w-g66g, 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-8wxf-c45w-g66g?

GHSA-8wxf-c45w-g66g has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 42th 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 GHSA-8wxf-c45w-g66g?

GHSA-8wxf-c45w-g66g is classified as CWE-521 (CWE-521). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-8wxf-c45w-g66g published, and has it been updated?

GHSA-8wxf-c45w-g66g was published on September 30, 2022 and was last updated on October 26, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

GHSA-8wxf-c45w-g66g: rdiffweb (Medium 5.4)

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk42th percentile+0.36%

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

ikus060/rdiffweb prior to 2.4.9 allows a user to set there password to all spaces. While rdiffweb has a password policy requiring passwords to be between 8 and 128 characters, it does not validate the password entropy, allowing users to bypass password complexity requirements with weak passwords. This issue has been fixed in version 2.4.9. No workarounds are known to exist.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`rdiffweb`	all versions	2.4.9

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 2.4.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8wxf-c45w-g66g 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-8wxf-c45w-g66g 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-8wxf-c45w-g66g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

ikus060/rdiffweb prior to 2.4.9 allows a user to set there password to all spaces. While rdiffweb has a password policy requiring passwords to be between 8 and 128 characters, it does not validate the password entropy, allowing users to bypass password complexity requirements with weak passwords. This issue has been fixed in version 2.4.9. No workarounds are known to exist.

O3 Security · Impact-Aware SCA

Is GHSA-8wxf-c45w-g66g in your dependencies?

O3 detects GHSA-8wxf-c45w-g66g 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

GHSA-8wxf-c45w-g66g