CVE-2026-66782

HIGHPre-NVD 5.87.8▲
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. A secondary CVSS source baseline 5.8; sources differ by 2.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in the Submariner operator. This vulnerability allows for the exposure of a long-lived broker service account (SA) bearer token within the Submariner Custom Resource (CR) specification. An attacker with access to the cluster's etcd database or through kubectl get commands could obtain this token. The possession of this token grants full control over the mesh network, enabling unauthorized management of network resources such as endpoints and secrets.

CVSS v3
5.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

August 18, 2026

Last Modified

September 3, 2026

Advisory Details (2)

Auto-updated Aug 18, 2026
Patch available. Sources: redhat.
redhat

2507527 – (CVE-2026-66782) CVE-2026-66782 submariner-operator: submariner-operator: broker API bearer token stored cleartext in CR spec

https://bugzilla.redhat.com/show_bug.cgi?id=2507527
redhat Patch Available

CVE-2026-66782 - 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-2026-66782

Vendor Advisories for CVE-2026-66782(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhacm2/submariner-rhel9-operator:17880734812026-09-03redhat

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(2)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 142× 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 217 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-66782?
CVE-2026-66782 is a high vulnerability published on August 18, 2026. A flaw was found in the Submariner operator. This vulnerability allows for the exposure of a long-lived broker service account (SA) bearer token within the Submariner Custom Resource (CR) specification. An attacker with access to the cluster's etcd database or through kubectl get commands could…
When was CVE-2026-66782 disclosed?
CVE-2026-66782 was first published on August 18, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66782 actively exploited?
CVE-2026-66782 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66782?
CVE-2026-66782 has a CVSS base score of 5.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.8 (HIGH).
How do I remediate CVE-2026-66782?
A fix for CVE-2026-66782 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-66782 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-66782

Explore →

Is Your Infrastructure Affected by CVE-2026-66782?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs