Rebuild Login Endpoint login improper authentication
Published Sep 29, 2026 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
Rebuild Login Endpoint login improper authentication
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
A vulnerability was identified in Rebuild up to 4.4.7/4.5.0-beta5. This affects an unknown part of the file /user/login of the component Login Endpoint. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
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
- MEDIUM
- Confidence
- 10%
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- VDB-411150 | Rebuild Login Endpoint login improper authentication ↗
- VDB-411150 | CTI Indicators (IOB, IOC, IOA) ↗
- CVE-2026-102248 | CVE Analysis and Report ↗
- Submit #933708 | REBUILD 4.4.7-release Improper Authentication ↗
- Source repository ↗
Record history
Published Sep 29, 2026 · Last refreshed Oct 23, 2026