Incorrect Authorization in @uppy/companion
@uppy/companion prior to version 3.3.1 is vulnerable to incorrect authorization. A user with URL upload access could enumerate internal companion server networks, send local webservers files to the destination server, and finally download them If each of these files had a guessable and regular name.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @uppy/companion | < 3.3.1 | 3.3.1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-200, CWE-863, CWE-918- Platform
- npm
- Package
@uppy/companion- Disclosed
- 04.03.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q24h-5rq3-63j9 - CC BY 4.0
Vulnerability history: @uppy/companion
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 08.2020 03.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 4
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Incorrect Authorization in @uppy/companion this entry
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