CVE-2026-11311

MEDIUMNVD 6.58.1▲
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. NVD baseline CVSS 6.5; sources differ by 1.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.5Exploit: NoneExposed: 0

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

When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition serverTokens field and the AuthenticationFilter Custom Resource Definition extraAuthArgs field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3
6.5
EG Score
8.1(medium)
EG Risk
—
EPSS
43.6%
KEV
Not listed

Published

June 17, 2026

Last Modified

July 2, 2026

Advisory Details (1)

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

myF5

https://my.f5.com/manage/s/article/K000161611

Vendor Advisories for CVE-2026-11311(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 80× 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.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-19 02:28 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-16 21:44 UTCGHSA enrichment
  8. 2026-07-16 17:02 UTCEPSS rescore
  9. 2026-07-16 07:30 UTCGHSA enrichment
  10. 2026-07-15 19:12 UTCGHSA enrichment
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 06:51 UTCGHSA enrichment
  13. 2026-07-15 02:00 UTCEPSS rescore
  14. 2026-07-14 18:33 UTCGHSA enrichment
  15. 2026-07-14 06:15 UTCGHSA enrichment
  16. 2026-07-13 22:30 UTCEPSS rescore
  17. 2026-07-13 17:56 UTCGHSA enrichment
  18. 2026-07-13 06:12 UTCEPSS rescore
  19. 2026-07-13 05:37 UTCGHSA enrichment
  20. 2026-07-12 17:18 UTCGHSA enrichment
  21. 2026-07-12 05:46 UTCEPSS rescore
  22. 2026-07-12 05:00 UTCGHSA enrichment
  23. 2026-07-11 16:42 UTCGHSA enrichment
  24. 2026-07-11 08:27 UTCEPSS rescore
  25. 2026-07-11 04:23 UTCGHSA enrichment
Show 75 more
  1. 2026-07-10 15:55 UTCGHSA enrichment
  2. 2026-07-10 02:59 UTCGHSA enrichment
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-09 14:11 UTCGHSA enrichment
  5. 2026-07-09 01:53 UTCGHSA enrichment
  6. 2026-07-08 15:15 UTCEPSS rescore
  7. 2026-07-08 15:15 UTCEPSS rescore
  8. 2026-07-08 13:08 UTCGHSA enrichment
  9. 2026-07-07 23:38 UTCGHSA enrichment
  10. 2026-07-07 13:46 UTCEPSS rescore
  11. 2026-07-07 11:18 UTCGHSA enrichment
  12. 2026-07-06 21:49 UTCGHSA enrichment
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-06 06:55 UTCGHSA enrichment
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-05 18:37 UTCGHSA enrichment
  17. 2026-07-05 06:19 UTCGHSA enrichment
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 17:12 UTCGHSA enrichment
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-04 04:44 UTCGHSA enrichment
  23. 2026-07-03 16:14 UTCGHSA enrichment
  24. 2026-07-03 03:56 UTCGHSA enrichment
  25. 2026-07-02 20:05 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  26. 2026-07-02 15:19 UTCGHSA enrichment
  27. 2026-07-02 03:00 UTCGHSA enrichment
  28. 2026-07-01 15:06 UTCEPSS rescore
  29. 2026-07-01 15:06 UTCEPSS rescore
  30. 2026-07-01 14:42 UTCGHSA enrichment
  31. 2026-07-01 02:24 UTCGHSA enrichment
  32. 2026-06-30 23:22 UTCEPSS rescore
  33. 2026-06-30 14:05 UTCGHSA enrichment
  34. 2026-06-30 01:41 UTCGHSA enrichment
  35. 2026-06-29 14:06 UTCEPSS rescore
  36. 2026-06-29 13:23 UTCGHSA enrichment
  37. 2026-06-29 01:05 UTCGHSA enrichment
  38. 2026-06-28 14:07 UTCEPSS rescore
  39. 2026-06-28 12:46 UTCGHSA enrichment
  40. 2026-06-28 04:56 UTCEPSS rescore
  41. 2026-06-28 04:56 UTCEPSS rescore
  42. 2026-06-28 00:29 UTCGHSA enrichment
  43. 2026-06-27 12:11 UTCGHSA enrichment
  44. 2026-06-27 03:08 UTCEPSS rescore
  45. 2026-06-26 23:49 UTCGHSA enrichment
  46. 2026-06-26 11:31 UTCGHSA enrichment
  47. 2026-06-25 21:27 UTCGHSA enrichment
  48. 2026-06-25 13:49 UTCEPSS rescore
  49. 2026-06-25 09:08 UTCGHSA enrichment
  50. 2026-06-24 20:49 UTCGHSA enrichment
  51. 2026-06-24 14:05 UTCEPSS rescore
  52. 2026-06-24 08:31 UTCGHSA enrichment
  53. 2026-06-23 21:32 UTCEPSS rescore
  54. 2026-06-23 20:13 UTCGHSA enrichment
  55. 2026-06-23 07:48 UTCGHSA enrichment
  56. 2026-06-22 19:26 UTCGHSA enrichment
  57. 2026-06-22 14:25 UTCEPSS rescore
  58. 2026-06-22 14:25 UTCEPSS rescore
  59. 2026-06-22 07:06 UTCGHSA enrichment
  60. 2026-06-21 18:33 UTCGHSA enrichment
  61. 2026-06-21 14:56 UTCEPSS rescore
  62. 2026-06-21 14:56 UTCEPSS rescore
  63. 2026-06-21 06:13 UTCGHSA enrichment
  64. 2026-06-21 01:59 UTCEPSS rescore
  65. 2026-06-21 01:59 UTCEPSS rescore
  66. 2026-06-20 17:50 UTCGHSA enrichment
  67. 2026-06-20 05:32 UTCGHSA enrichment
  68. 2026-06-19 19:25 UTCEPSS rescore
  69. 2026-06-19 17:13 UTCGHSA enrichment
  70. 2026-06-19 04:49 UTCGHSA enrichment
  71. 2026-06-18 17:52 UTCEPSS rescore
  72. 2026-06-18 16:29 UTCGHSA enrichment
  73. 2026-06-18 04:10 UTCGHSA enrichment
  74. 2026-06-17 15:53 UTCEG score recompute
  75. 2026-06-17 15:52 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11311?
CVE-2026-11311 is a medium vulnerability published on June 17, 2026. When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition serverTokens field and the…
When was CVE-2026-11311 disclosed?
CVE-2026-11311 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11311 actively exploited?
CVE-2026-11311 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11311?
CVE-2026-11311 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.1.
How do I remediate CVE-2026-11311?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11311, 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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