CVE-2026-39999

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-19. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

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

Authentication Bypass by Spoofing vulnerability in Apache APISIX.

The attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin. This issue affects Apache APISIX: from v2.2 through v3.16.0.

Users are recommended to upgrade to version v3.17.0, which fixes the issue.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
31.2%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 23, 2026

Advisory Details (1)

Auto-updated Jun 19, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/nfopt8cnxd3k0rs1oxtr7lzxrdw4mojq

Vendor Advisories for CVE-2026-39999(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 11× in last 7d / 186× 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 197 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-39999?
CVE-2026-39999 is a critical vulnerability published on June 19, 2026. Authentication Bypass by Spoofing vulnerability in Apache APISIX. The attacker can completely bypass authentication capitalising on certain configurations of jwt-auth plugin. This issue affects Apache APISIX: from v2.2 through v3.16.0. Users are recommended to upgrade to version v3.17.0, which…
When was CVE-2026-39999 disclosed?
CVE-2026-39999 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39999 actively exploited?
CVE-2026-39999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-39999?
CVE-2026-39999 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-39999?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39999, 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.

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