CVE-2026-18947

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM 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(medium)
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
37%
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 35× in last 7d / 153× 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.

Showing the most recent 100 of 231 total refreshes for this CVE.

  1. 2026-09-19 06:19 UTCEG score recompute
  2. 2026-09-19 06:19 UTCVendor advisory
  3. 2026-09-19 06:19 UTCGHSA enrichment
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-18 17:15 UTCVendor advisory
  6. 2026-09-18 17:15 UTCGHSA enrichment
  7. 2026-09-18 03:50 UTCEG score recompute
  8. 2026-09-18 03:50 UTCVendor advisory
  9. 2026-09-18 03:50 UTCGHSA enrichment
  10. 2026-09-17 14:52 UTCVendor advisory
  11. 2026-09-17 14:52 UTCGHSA enrichment
  12. 2026-09-17 00:40 UTCEG score recompute
  13. 2026-09-17 00:40 UTCVendor advisory
  14. 2026-09-17 00:40 UTCGHSA enrichment
  15. 2026-09-16 14:07 UTCEPSS rescore
  16. 2026-09-16 05:14 UTCEPSS rescore
  17. 2026-09-16 02:23 UTCVendor advisory
  18. 2026-09-16 02:23 UTCGHSA enrichment
  19. 2026-09-15 06:31 UTCEG score recompute
  20. 2026-09-15 06:31 UTCVendor advisory
  21. 2026-09-15 06:30 UTCGHSA enrichment
  22. 2026-09-14 16:55 UTCVendor advisory
  23. 2026-09-14 16:55 UTCGHSA enrichment
  24. 2026-09-14 03:57 UTCEG score recompute
  25. 2026-09-14 03:57 UTCVendor advisory
Show 75 more
  1. 2026-09-14 03:57 UTCGHSA enrichment
  2. 2026-09-13 16:46 UTCEPSS rescore
  3. 2026-09-13 15:00 UTCVendor advisory
  4. 2026-09-13 15:00 UTCGHSA enrichment
  5. 2026-09-13 01:55 UTCEG score recompute
  6. 2026-09-13 01:55 UTCVendor advisory
  7. 2026-09-13 01:55 UTCGHSA enrichment
  8. 2026-09-12 15:00 UTCEPSS rescore
  9. 2026-09-12 12:57 UTCVendor advisory
  10. 2026-09-12 12:57 UTCGHSA enrichment
  11. 2026-09-11 23:59 UTCEG score recompute
  12. 2026-09-11 23:59 UTCVendor advisory
  13. 2026-09-11 23:59 UTCGHSA enrichment
  14. 2026-09-11 14:52 UTCEPSS rescore
  15. 2026-09-11 09:45 UTCVendor advisory
  16. 2026-09-11 09:44 UTCGHSA enrichment
  17. 2026-09-11 09:43 UTCEG score recompute
  18. 2026-09-11 09:43 UTCVendor advisory
  19. 2026-09-11 09:43 UTCGHSA enrichment
  20. 2026-09-11 09:36 UTCEPSS rescore
  21. 2026-09-10 20:44 UTCEG score recompute
  22. 2026-09-10 20:44 UTCVendor advisory
  23. 2026-09-10 20:44 UTCGHSA enrichment
  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-10 07:45 UTCEG score recompute
  26. 2026-09-10 07:45 UTCVendor advisory
  27. 2026-09-10 07:45 UTCGHSA enrichment
  28. 2026-09-09 18:47 UTCVendor advisory
  29. 2026-09-09 18:47 UTCGHSA enrichment
  30. 2026-09-09 05:50 UTCEG score recompute
  31. 2026-09-09 05:50 UTCVendor advisory
  32. 2026-09-09 05:50 UTCGHSA enrichment
  33. 2026-09-08 22:00 UTCEPSS rescore
  34. 2026-09-08 07:20 UTCVendor advisory
  35. 2026-09-08 07:20 UTCGHSA enrichment
  36. 2026-09-07 17:12 UTCEG score recompute
  37. 2026-09-07 17:12 UTCVendor advisory
  38. 2026-09-07 17:12 UTCGHSA enrichment
  39. 2026-09-07 16:01 UTCEPSS rescore
  40. 2026-09-06 17:21 UTCEG score recompute
  41. 2026-09-06 17:21 UTCVendor advisory
  42. 2026-09-06 17:21 UTCGHSA enrichment
  43. 2026-09-06 13:47 UTCEPSS rescore
  44. 2026-09-06 04:23 UTCEG score recompute
  45. 2026-09-06 04:23 UTCVendor advisory
  46. 2026-09-06 04:23 UTCGHSA enrichment
  47. 2026-09-05 15:25 UTCVendor advisory
  48. 2026-09-05 15:25 UTCGHSA enrichment
  49. 2026-09-05 01:50 UTCEG score recompute
  50. 2026-09-05 01:50 UTCVendor advisory
  51. 2026-09-05 01:50 UTCGHSA enrichment
  52. 2026-09-04 08:20 UTCEG score recompute
  53. 2026-09-04 08:20 UTCVendor advisory
  54. 2026-09-04 08:20 UTCGHSA enrichment
  55. 2026-09-04 05:06 UTCEPSS rescore
  56. 2026-09-03 16:37 UTCVendor advisory
  57. 2026-09-03 16:37 UTCGHSA enrichment
  58. 2026-09-03 02:02 UTCEG score recompute
  59. 2026-09-03 02:02 UTCVendor advisory
  60. 2026-09-03 02:02 UTCGHSA enrichment
  61. 2026-09-02 14:11 UTCEPSS rescore
  62. 2026-09-02 02:53 UTCEG score recompute
  63. 2026-09-02 02:53 UTCVendor advisory
  64. 2026-09-02 02:53 UTCGHSA enrichment
  65. 2026-09-01 13:53 UTCEPSS rescore
  66. 2026-09-01 13:33 UTCEG score recompute
  67. 2026-09-01 13:33 UTCVendor advisory
  68. 2026-09-01 13:32 UTCGHSA enrichment
  69. 2026-09-01 04:39 UTCEPSS rescore
  70. 2026-08-31 22:04 UTCVendor advisory
  71. 2026-08-31 22:04 UTCGHSA enrichment
  72. 2026-08-31 00:50 UTCEG score recompute
  73. 2026-08-31 00:50 UTCVendor advisory
  74. 2026-08-31 00:50 UTCGHSA enrichment
  75. 2026-08-30 19:17 UTCEPSS rescore

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 63.0% 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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