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🐍 PyPI
Not in CISA KEV
HIGH severity

rdiffweb CSRF vulnerability in profile's SSH keys can lead to unauthorized accessGHSA-vq4h-xrwc-m639

HIGHFix: ikus060/rdiffweb@9125f5a

GHSA-vq4h-xrwc-m639 is a high-severity (CVSS 8.8) Cross-Site Request Forgery (CSRF) 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.

Also known asCVE-2022-3221PYSEC-2022-278
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk
0.00%0.42%0.84%1.26%0.2%0.8%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 2.4.3 is vulnerable to Cross-Site Request Forgery (CSRF). While adding SSH public keys to the profile, the server accepts the GET request, which results in adding an SSH public key to the profile and leads to unauthorized access to the system and backups. Version 2.4.3 contains a patch for this issue.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIrdiffweball versions2.4.3pip install --upgrade 'rdiffweb==2.4.3'

Affected Products

1 product · 1 configurations
Application
rdiffwebikus-soft
< 2.4.3
range
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.

Cross-Site Request Forgery (CSRF) in GitHub repository ikus060/rdiffweb …

huntr.devNVDSep 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 2.4.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vq4h-xrwc-m639 is resolved across your whole dependency graph.

  3. 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

rdiffweb prior to 2.4.3 is vulnerable to Cross-Site Request Forgery (CSRF). While adding SSH public keys to the profile, the server accepts the GET request, which results in adding an SSH public key to the profile and leads to unauthorized access to the system and backups. Version 2.4.3 contains a patch for this issue.
O3 Security · Impact-Aware SCA

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rdiffweb CSRF vulnerability in profile's SSH keys can lead…