CVE-2026-102248

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-29. A secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.3Exploit: Elevated riskExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

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 v3
7.3
EG Score
7.3HIGHhigh confidence
EG Risk
64
EG Risk 64/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 29, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 29, 2026
No patch confirmed yet.
generic

REBUILD /user/login Public Share Token Authentication Bypass · Issue #25 · ASantsSec/CVE · GitHub

https://github.com/ASantsSec/CVE/issues/25

Vendor Advisories for CVE-2026-102248(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 30× in last 7d / 30× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 11:28 UTCGHSA enrichment
  2. 2026-10-04 00:14 UTCEG score recompute
  3. 2026-10-04 00:14 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 13:01 UTCGHSA enrichment
  6. 2026-10-03 01:46 UTCEG score recompute
  7. 2026-10-03 01:46 UTCGHSA enrichment
  8. 2026-10-02 14:32 UTCGHSA enrichment
  9. 2026-10-02 03:15 UTCEG score recompute
  10. 2026-10-02 03:15 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 16:01 UTCGHSA enrichment
  13. 2026-10-01 04:48 UTCGHSA enrichment
  14. 2026-09-30 17:31 UTCEG score recompute
  15. 2026-09-30 17:31 UTCGHSA enrichment
  16. 2026-09-30 15:02 UTCEPSS rescore
  17. 2026-09-30 06:18 UTCGHSA enrichment
  18. 2026-09-29 19:05 UTCEG score recompute
  19. 2026-09-29 19:05 UTCGHSA enrichment
  20. 2026-09-29 17:25 UTCEG score recompute
  21. 2026-09-29 17:25 UTCGHSA enrichment
  22. 2026-09-29 17:24 UTCNVD updateCVSS v4 → 5.5
  23. 2026-09-29 17:18 UTCMITRE cvelistV5CVSS v4 → 6.9
  24. 2026-09-29 15:46 UTCEG score recompute
  25. 2026-09-29 15:46 UTCGHSA enrichment
Show 5 more
  1. 2026-09-29 15:20 UTCEPSS rescore
  2. 2026-09-29 04:31 UTCEG score recompute
  3. 2026-09-29 04:30 UTCNVD updateCVSS v4 → 5.5
  4. 2026-09-29 03:40 UTCEG score recompute
  5. 2026-09-29 03:40 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-102248?
CVE-2026-102248 is a high vulnerability published on September 29, 2026. 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…
When was CVE-2026-102248 disclosed?
CVE-2026-102248 was first published on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-102248 actively exploited?
CVE-2026-102248 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102248?
CVE-2026-102248 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-102248?
No fix for CVE-2026-102248 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-102248 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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