Improper Authorization in loopback
Vulnerable versions of loopback may allow attackers to create Authentication Tokens on behalf of other users due to Improper Authorization. If the AccessToken model is publicly exposed, an attacker can create Authorization Tokens for any user as long as they know the target's userId. This will allow the attacker to access the user's data and their privileges.
Recommendation
For loopback 2.x, upgrade to version 2.40.0 or later For loopback 3.x, upgrade to version 3.22.0 or later
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | loopback | < 2.40.0, >= 3.0.0, < 3.22.0 | 2.40.0, 3.22.0 |
References
- Weakness (CWE)
CWE-285- Platform
- npm
- Package
loopback- Disclosed
- 02.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8wgc-jjvv-cv6v - CC BY 4.0
Vulnerability history: loopback
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
- 2
- First → latest
- 09.2020 09.2020
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Low 1
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Improper Authorization in loopback this entry
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