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MEDIUM severity

CVE-2022-4885 — jefferson

MEDIUMFix: sviehb/jefferson@53b3f2f

CVE-2022-4885 is a medium-severity (CVSS 5) Path Traversal vulnerability in jefferson. A fix is available for jefferson — see the affected versions and patch details below.

sviehb jefferson path traversal

Also known asGHSA-7jrw-p8jc-v6qwPYSEC-2026-826
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk+0.02%
Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk
0.00%0.42%0.84%1.27%0.4%0.8%Apr 26Aug 26Oct 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
🐍jefferson

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

A vulnerability has been found in sviehb jefferson up to 0.3 and classified as critical. This vulnerability affects unknown code of the file src/scripts/jefferson. The manipulation leads to path traversal. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 0.4 is able to address this issue. The name of the patch is 53b3f2fc34af0bb32afbcee29d18213e61471d87. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218020.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIjeffersonall versions0.4pip install --upgrade 'jefferson==0.4'

Affected Products

1 product · 1 configurations
Application
jeffersonjefferson_project
< 0.4
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update jefferson to 0.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-4885 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

A vulnerability has been found in sviehb jefferson up to 0.3 and classified as critical. This vulnerability affects unknown code of the file src/scripts/jefferson. The manipulation leads to path traversal. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 0.4 is able to address this issue. The name of the patch is 53b3f2fc34af0bb32afbcee29d18213e61471d87. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218020.
O3 Security · Impact-Aware SCA

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CVE-2022-4885: jefferson Path Traversal — Fixed in 0.4