CVE-2026-42965

HIGHNVD 6.57.7▲
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. NVD baseline CVSS 6.5; sources differ by 1.2.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses.

CVSS v3
6.5
EG Score
7.7(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity77% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

May 29, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
Patch available. Sources: redhat.
redhat

2483184 – (CVE-2026-42965) CVE-2026-42965 openshift/router: openshift/router: cloud metadata SSRF via FQDN-typed EndpointSlice bypasses destination validation

https://bugzilla.redhat.com/show_bug.cgi?id=2483184
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-42965

Vendor Advisories for CVE-2026-42965(5)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-haproxy-router-rhel9:17867713992026-08-26redhat
redhatopenshift4/ose-haproxy-router-rhel9:17864981692026-08-18redhat
redhatopenshift4/ose-haproxy-router-rhel9:17865841962026-08-18redhat
redhatopenshift4/ose-haproxy-router-rhel9:17864965522026-08-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 108× 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 270 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-42965?
CVE-2026-42965 is a high vulnerability published on May 29, 2026. A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud…
When was CVE-2026-42965 disclosed?
CVE-2026-42965 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42965 actively exploited?
CVE-2026-42965 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.1% of all scored CVEs.
What is the CVSS score of CVE-2026-42965?
CVE-2026-42965 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.7.
How do I remediate CVE-2026-42965?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42965, 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

Explore the affected products and dependency analysis for CVE-2026-42965

Explore →

Is Your Infrastructure Affected by CVE-2026-42965?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs