CVE-2026-33376

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-05-13. the CNA's CVSS baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:grafana, epss, ghsa
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

A fix is available — apply it.

When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

May 13, 2026

Last Modified

August 27, 2026

References (1)

Vendor Advisories for CVE-2026-33376(8)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgrafana-0:10.2.6-23.el9_8.22026-08-24redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17866219602026-08-17redhat
redhatgrafana-0:10.2.6-28.el10_2.42026-08-12redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17854428722026-08-11redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17854436572026-08-10redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17849066282026-07-28redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17845613762026-07-23redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17845620602026-07-21redhat

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 7× in last 7d / 60× 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 276 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-33376?
CVE-2026-33376 is a high vulnerability published on May 13, 2026. When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here.
When was CVE-2026-33376 disclosed?
CVE-2026-33376 was first published in the National Vulnerability Database on May 13, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33376 actively exploited?
CVE-2026-33376 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 79.4% of all scored CVEs.
What is the CVSS score of CVE-2026-33376?
CVE-2026-33376 has a CVSS v4.0 base score of 7.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-33376?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33376, 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

Explore the affected products and dependency analysis for CVE-2026-33376

Explore →

Is Your Infrastructure Affected by CVE-2026-33376?

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

Start Free Scan →Browse All CVEs