CVE-2026-39999

CRITICALNVD 9.19.1—
EchelonGraph scoreHIGH 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(high)
EPSS
30.6%
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 97× in last 7d / 207× 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 207 total refreshes for this CVE.

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

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 30.6% 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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