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Not in CISA KEV
LOW severity

CVE-2022-3273 — rdiffweb

LOWFix: ikus060/rdiffweb@b5e3bb0

CVE-2022-3273 is a low-severity (CVSS 3.6) CWE-770 vulnerability in rdiffweb. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for rdiffweb — see the affected versions and patch details below.

Allocation of Resources Without Limits or Throttling in ikus060/rdiffweb

Also known asGHSA-9g3v-v24q-jj5pPYSEC-2022-43156
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs47th percentile — riskier than 47% of all scored CVEsHighest risk
0.00%0.36%0.71%1.07%0.2%0.6%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

rdiffweb prior to 2.5.0a4 does not have a rate limit to prevent attackers attempting brute force attacks to guess passwords. Version 2.5.0a4 limits the number of incorrect password attempts.

Affected Packages

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

Affected Products

1 product · 4 configurations
Application
rdiffwebikus-soft
≤ 2.4.10
1 version
2.5.0
Exploits & PoCs
1

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.devNVDOct 2022

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-2022-3273 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

rdiffweb prior to 2.5.0a4 does not have a rate limit to prevent attackers attempting brute force attacks to guess passwords. Version 2.5.0a4 limits the number of incorrect password attempts.
O3 Security · Impact-Aware SCA

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CVE-2022-3273: rdiffweb — Fixed in 2.5.0