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MEDIUM severity

CVE-2022-3327 — rdiffweb

MEDIUMFix: ikus060/rdiffweb@f2a32f2

CVE-2022-3327 is a medium-severity (CVSS 4.5) Missing Authentication vulnerability in rdiffweb. A fix is available for rdiffweb — see the affected versions and patch details below.

Missing Authentication for Critical Function in ikus060/rdiffweb

Also known asGHSA-99j5-fvg3-54pmPYSEC-2022-42977
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-3327.

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk+0.02%
Lower risk than most CVEs64th percentile — riskier than 64% of all scored CVEsHighest risk
0.00%0.51%1.01%1.52%0.3%1.0%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

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

Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIrdiffweball versions2.5.0pip install --upgrade 'rdiffweb==2.5.0'

Affected Products

1 product · 7 configurations
Application
rdiffwebikus-soft
< 2.4.10
2 versions
2.4.102.5.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update rdiffweb to 2.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-3327 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.
O3 Security · Impact-Aware SCA

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CVE-2022-3327: rdiffweb — Fixed in 2.5.0