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High 7.3Published Sep 29, 2026

CVE-2026-102248Rebuild Login Endpoint login improper authentication

Updated under an hour ago ()

Does this affect you?

It affects n/a Rebuild. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.38%, higher than 30% of scored CVEs.

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.

CVSS
7.3 HIGH (v3.1, CNA)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
Weakness (CWE)
CWE-287
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.38% (percentile 30)
Assigned by
VulDB
NVD analysis
Deferred
Record last updated
Sep 29, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
n/a Rebuild
rebuild:rebuild
4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; 4.4.5; 4.4.6; 4.4.7; and 5 more ranges
CNA record

References

  • vdb-entry
  • signature, permissions-required
  • third-party-advisory
  • third-party-advisory
  • exploit, issue-tracking

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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