CVE-2026-52865

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the NGINX Ingress Controller process to terminate.

Impact: The NGINX Ingress Controller control plane process terminates and enters a persistent crash loop while the malformed Ingress or TransportServer resource remains in the cluster. This vulnerability allows a remote, authenticated attacker with at least Ingress or TransportServer resource write access to cause a denial-of-service (DoS) on the NGINX Ingress Controller system. There is no data plane exposure; this is a control plane issue only.

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

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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 (value × EchelonGraph’s weight)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 15, 2026

Last Modified

July 16, 2026

Advisory Details (1)

Auto-updated Jul 15, 2026
Fix referenced — no release confirmed yet.

Vendor Advisories for CVE-2026-52865(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 / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 164 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 64 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-10-12 15:58 UTCEG score recompute
  4. 2026-10-11 19:41 UTCEG score recompute
  5. 2026-10-11 16:56 UTCEG score recompute
  6. 2026-10-11 14:19 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-10-01 12:41 UTCEG score recompute
  19. 2026-10-01 12:41 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-09-28 08:46 UTCEG score recompute
  24. 2026-09-28 08:46 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 75 more
  1. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-09-24 08:51 UTCEG score recompute
  4. 2026-09-24 08:51 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  5. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-09-23 03:18 UTCEG score recompute
  7. 2026-09-23 03:18 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  8. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-09-18 04:45 UTCEG score recompute
  11. 2026-09-18 04:45 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  12. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-09-14 09:19 UTCEG score recompute
  15. 2026-09-14 09:19 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  16. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-13 07:14 UTCEG score recompute
  18. 2026-09-13 07:14 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  19. 2026-09-11 21:46 UTCEG score recompute
  20. 2026-09-11 21:46 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  21. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-09-08 00:55 UTCEG score recompute
  25. 2026-09-08 00:55 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  26. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  27. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  28. 2026-09-05 20:51 UTCEG score recompute
  29. 2026-09-05 20:51 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  30. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  31. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  33. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  34. 2026-08-31 05:58 UTCEG score recompute
  35. 2026-08-31 05:58 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  36. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  37. 2026-08-30 03:53 UTCEG score recompute
  38. 2026-08-30 03:53 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  39. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  40. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  41. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  42. 2026-08-27 03:38 UTCEG score recompute
  43. 2026-08-27 03:38 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  44. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  45. 2026-08-26 01:32 UTCEG score recompute
  46. 2026-08-26 01:32 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  47. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  48. 2026-08-24 23:28 UTCEG score recompute
  49. 2026-08-24 23:28 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  50. 2026-08-23 21:23 UTCEG score recompute
  51. 2026-08-23 21:23 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  52. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  53. 2026-08-22 19:19 UTCEG score recompute
  54. 2026-08-22 19:19 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-08-21 17:14 UTCEG score recompute
  57. 2026-08-21 17:14 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  58. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  59. 2026-08-20 15:10 UTCEG score recompute
  60. 2026-08-20 15:10 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  61. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  62. 2026-08-19 13:05 UTCEG score recompute
  63. 2026-08-19 13:05 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  64. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  65. 2026-08-18 10:56 UTCEG score recompute
  66. 2026-08-18 10:56 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  67. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  68. 2026-08-17 08:51 UTCEG score recompute
  69. 2026-08-17 08:51 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  70. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  71. 2026-08-16 06:47 UTCEG score recompute
  72. 2026-08-16 06:47 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5
  73. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  74. 2026-08-15 04:43 UTCEG score recompute
  75. 2026-08-15 04:43 UTCGHSA enrichmentGHSA-gv6x-94m7-c6hh · GitHub severity HIGH · GitHub CVSS 6.5

Frequently asked(5)

What is CVE-2026-52865?
CVE-2026-52865 is a medium-severity vulnerability; its CVE record was published on July 15, 2026. When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the NGINX Ingress Controller process to terminate. Impact: The NGINX Ingress Controller control plane…
When was CVE-2026-52865 made public?
CVE-2026-52865 was made public on July 15, 2026: that is the date its CVE record's CNA, F5, Inc., gives for when the vulnerability was made public. The CVE record itself was published on July 15, 2026. EchelonGraph's copy of the record carries a last-modified date of July 16, 2026; the record at its source may have been updated since.
Is CVE-2026-52865 actively exploited?
CVE-2026-52865 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-52865?
CVE-2026-52865 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-52865?
A fix for CVE-2026-52865 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-52865 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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