CVE-2026-18947

HIGHPre-NVD 8.58.5—
EchelonGraph scoreHIGH confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the feature_views field, an attacker can bypass intended permission checks. This allows an unauthenticated remote attacker, or any authenticated user, to trigger a full re-materialization of all feature views. The consequence is a Denial of Service (DoS) due to data corruption and significant resource consumption across all tenants.

CVSS v3
8.5
EG Score
8.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

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
Severity85% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 19, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
Patch available. Sources: redhat.
redhat

2511164 – (CVE-2026-18947) CVE-2026-18947 feast: Feast: Authorization bypass in /materialize endpoints enables DoS via unauthorized full re-materialization

https://bugzilla.redhat.com/show_bug.cgi?id=2511164
redhat Patch Available

CVE-2026-18947 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-18947

Vendor Advisories for CVE-2026-18947(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-feature-server-rhel9:17861100332026-08-11redhat
redhatrhoai/odh-feature-server-rhel9:17861100512026-08-11redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 43× in last 7d / 81× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 14:16 UTCVendor advisory
  3. 2026-08-20 14:16 UTCGHSA enrichment
  4. 2026-08-20 00:20 UTCEG score recompute
  5. 2026-08-20 00:20 UTCVendor advisory
  6. 2026-08-20 00:20 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 11:22 UTCEG score recompute
  9. 2026-08-19 11:22 UTCVendor advisory
  10. 2026-08-19 11:22 UTCGHSA enrichment
  11. 2026-08-19 10:24 UTCEG score recompute
  12. 2026-08-19 10:24 UTCVendor advisory
  13. 2026-08-19 10:24 UTCGHSA enrichment
  14. 2026-08-19 04:14 UTCVendor advisory
  15. 2026-08-19 04:14 UTCGHSA enrichment
  16. 2026-08-18 15:17 UTCEG score recompute
  17. 2026-08-18 15:17 UTCVendor advisory
  18. 2026-08-18 15:17 UTCGHSA enrichment
  19. 2026-08-18 13:48 UTCEPSS rescore
  20. 2026-08-18 01:05 UTCEG score recompute
  21. 2026-08-18 01:05 UTCVendor advisory
  22. 2026-08-18 01:05 UTCGHSA enrichment
  23. 2026-08-17 13:47 UTCEPSS rescore
  24. 2026-08-17 12:07 UTCVendor advisory
  25. 2026-08-17 12:07 UTCGHSA enrichment
Show 56 more
  1. 2026-08-16 23:10 UTCEG score recompute
  2. 2026-08-16 23:10 UTCVendor advisory
  3. 2026-08-16 23:10 UTCGHSA enrichment
  4. 2026-08-16 14:56 UTCEPSS rescore
  5. 2026-08-16 10:12 UTCEG score recompute
  6. 2026-08-16 10:12 UTCVendor advisory
  7. 2026-08-16 10:12 UTCGHSA enrichment
  8. 2026-08-16 02:14 UTCEPSS rescore
  9. 2026-08-15 21:15 UTCVendor advisory
  10. 2026-08-15 21:15 UTCGHSA enrichment
  11. 2026-08-15 08:17 UTCEG score recompute
  12. 2026-08-15 08:17 UTCVendor advisory
  13. 2026-08-15 08:17 UTCGHSA enrichment
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-14 19:19 UTCVendor advisory
  16. 2026-08-14 19:19 UTCGHSA enrichment
  17. 2026-08-14 13:08 UTCVendor advisory
  18. 2026-08-14 13:08 UTCGHSA enrichment
  19. 2026-08-14 00:11 UTCEG score recompute
  20. 2026-08-14 00:11 UTCVendor advisory
  21. 2026-08-14 00:11 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 11:13 UTCVendor advisory
  24. 2026-08-13 11:13 UTCGHSA enrichment
  25. 2026-08-12 22:16 UTCEG score recompute
  26. 2026-08-12 22:16 UTCVendor advisory
  27. 2026-08-12 22:16 UTCGHSA enrichment
  28. 2026-08-12 13:50 UTCEPSS rescore
  29. 2026-08-12 09:18 UTCVendor advisory
  30. 2026-08-12 09:18 UTCGHSA enrichment
  31. 2026-08-11 20:20 UTCEG score recompute
  32. 2026-08-11 20:20 UTCVendor advisory
  33. 2026-08-11 20:20 UTCGHSA enrichment
  34. 2026-08-11 20:10 UTCEG score recompute
  35. 2026-08-11 20:10 UTCVendor advisory
  36. 2026-08-11 20:10 UTCGHSA enrichment
  37. 2026-08-11 19:18 UTCEG score recompute
  38. 2026-08-11 19:18 UTCVendor advisory
  39. 2026-08-11 19:18 UTCGHSA enrichment
  40. 2026-08-11 19:04 UTCEG score recompute
  41. 2026-08-11 19:04 UTCVendor advisory
  42. 2026-08-11 19:04 UTCGHSA enrichment
  43. 2026-08-11 16:36 UTCEG score recompute
  44. 2026-08-11 16:36 UTCVendor advisory
  45. 2026-08-11 16:36 UTCGHSA enrichment
  46. 2026-08-11 15:41 UTCEG score recompute
  47. 2026-08-11 15:41 UTCVendor advisory
  48. 2026-08-11 15:41 UTCGHSA enrichment
  49. 2026-08-11 13:42 UTCEPSS rescore
  50. 2026-08-11 05:23 UTCEG score recompute
  51. 2026-08-11 05:23 UTCGHSA enrichment
  52. 2026-08-11 05:08 UTCEG score recompute
  53. 2026-08-11 05:08 UTCGHSA enrichment
  54. 2026-08-10 21:31 UTCEG score recompute
  55. 2026-08-10 20:55 UTCEG score recompute
  56. 2026-08-10 20:54 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-18947?
CVE-2026-18947 is a high vulnerability published on August 10, 2026. A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the feature_views field, an attacker can bypass intended permission checks. This allows an unauthenticated remote…
When was CVE-2026-18947 disclosed?
CVE-2026-18947 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18947 actively exploited?
CVE-2026-18947 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.7% of all scored CVEs.
What is the CVSS score of CVE-2026-18947?
CVE-2026-18947 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-18947?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18947, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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