CVE-2026-8100

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.6Exploit: None knownExposed: 0

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

Impact

A security issue has been identified in Chef 360 that could allow unauthorized access to protected API endpoints under specific conditions. This issue is due to improper handling of URL-encoded paths during request processing. In certain scenarios, an authenticated request may bypass standard access controls gaining additional privileges, potentially allowing access to API endpoints that are intended to be restricted to higher-permissioned roles. The impact is limited to environments where the affected request patterns can be triggered and depends on specific deployment configuration and access controls in place. Resolution The issue has been addressed through product updates that improve request validation and enforce strict path normalization before authorization checks.  Customers are advised to update to the latest available version containing the fix, version 1.7.1 or later.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity86% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

June 18, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 18, 2026
No patch confirmed yet.
generic

Progress Customer Community

https://community.progress.com/s/article/Authentication-Bypass-via-URL-Encoded-Path-Traversal

Vendor Advisories for CVE-2026-8100(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 76× 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 101 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-8100?
CVE-2026-8100 is a high vulnerability published on June 18, 2026. Impact A security issue has been identified in Chef 360 that could allow unauthorized access to protected API endpoints under specific conditions. This issue is due to improper handling of URL-encoded paths during request processing. In certain scenarios, an authenticated request may bypass…
When was CVE-2026-8100 disclosed?
CVE-2026-8100 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8100 actively exploited?
CVE-2026-8100 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.3% of all scored CVEs.
What is the CVSS score of CVE-2026-8100?
CVE-2026-8100 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-8100?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8100, 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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