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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a Rebuild affected
Version Status Constraints
4.4.0 affected —
4.4.1 affected —
4.4.2 affected —
4.4.3 affected —
4.4.4 affected —
4.4.5 affected —
4.4.6 affected —
4.4.7 affected —
4.5.0-beta1 affected —
4.5.0-beta2 affected —
4.5.0-beta3 affected —
4.5.0-beta4 affected —
4.5.0-beta5 affected —

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/ASantsSec/CVE/issues/25 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-102248 cve-icon cve-icon
https://vuldb.com/submit/933708 cve-icon cve-icon
https://vuldb.com/vuln/411150 cve-icon cve-icon
https://vuldb.com/vuln/411150/cti cve-icon cve-icon
History

Tue, 29 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 29 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Rebuild Login Endpoint login improper authentication
First Time appeared Rebuild
Rebuild rebuild
Weaknesses CWE-287
CPEs cpe:2.3:a:rebuild:rebuild:*:*:*:*:*:*:*:*
Vendors & Products Rebuild
Rebuild rebuild
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-29T17:00:11.613Z

Reserved: 2026-09-28T19:04:31.218Z

Link: CVE-2026-102248

cve-icon Vulnrichment

Updated: 2026-09-29T17:00:05.889Z

cve-icon NVD

Status : Deferred

Published: 2026-09-29T04:17:54.570

Modified: 2026-09-29T18:57:24.350

Link: CVE-2026-102248

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T07:30:14Z

Weaknesses