pyLoad is vulnerable to attacks that bypass localhost restrictions, enabling the creation of arbitrary packages
Published Jul 8, 2025 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
pyLoad is vulnerable to attacks that bypass localhost restrictions, enabling the creation of arbitrary packages
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Any unauthenticated attacker can bypass the localhost restrictions posed by the application and utilize this to create arbitrary packages.
Potential impact
An unauthenticated user can perform actions that should only be available to authenticated users.
Technical context
Any unauthenticated attacker can bypass the localhost restrictions posed by the application and utilize this to create arbitrary packages. This is done by changing the Host header to the value of 127.0.0.1:9666.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Jul 8, 2025 · Last refreshed Nov 3, 2026