CVE-2026-45393

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

A vulnerability chain in Cribl Edge for Windows before 4.17.1 allows a local authenticated user to escalate privileges to NT AUTHORITY\SYSTEM. Incorrect default permissions on the Windows installer's authentication directory (CWE-276) expose a cryptographic secret used for JWT signing and password-hash derivation, enabling forgery of administrative API tokens. The forged token can then be used to invoke a pipeline function that reaches an OS command sink (CWE-78) running in the SYSTEM context.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

May 12, 2026

Last Modified

June 2, 2026

Advisory Details (2)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

TrustShare

https://trust.cribl.io/notifications
generic

Cribl Edge 4.17.1 | Cribl Docs

https://docs.cribl.io/edge/release-notes/release-v4171#security-fixes

Vendor Advisories for CVE-2026-45393(1)

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

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 77× 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 284 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45393?
CVE-2026-45393 is a critical vulnerability published on May 12, 2026. A vulnerability chain in Cribl Edge for Windows before 4.17.1 allows a local authenticated user to escalate privileges to NT AUTHORITY\SYSTEM. Incorrect default permissions on the Windows installer's authentication directory (CWE-276) expose a cryptographic secret used for JWT signing and…
When was CVE-2026-45393 disclosed?
CVE-2026-45393 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45393 actively exploited?
CVE-2026-45393 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 87.5% of all scored CVEs.
What is the CVSS score of CVE-2026-45393?
CVE-2026-45393 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-45393?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45393, 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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