CVE-2026-42965

HIGHNVD 6.57.7
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
7.7EG
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 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
7.7HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity77% × 45%
Impact severity (EG Severity): CVSS 7.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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 available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.7): severity, escalated by confirmed exploitation. This CVE's 7.7 is its impact severity (EG Severity), not escalated.

EG Severity
7.7 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

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

A fix is available. Apply it within your standard update timelines.

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

May 29, 2026

Last Modified

October 1, 2026

Advisory Details (2)

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

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
Red HatMentions a patch (unverified)

cve-details

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

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatopenshift4/ose-haproxy-router-rhel9:17899386932026-10-01redhat
redhatopenshift4/ose-haproxy-router-rhel9:17885788752026-09-17redhat
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 11× in last 7d / 41× 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 350 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 250 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-18 03:40 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-17 14:17 UTCEG score recompute
  6. 2026-10-17 14:17 UTCVendor advisory
  7. 2026-10-17 14:17 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  8. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-12 16:06 UTCEG score recompute
  14. 2026-10-11 19:48 UTCEG score recompute
  15. 2026-10-11 17:03 UTCEG score recompute
  16. 2026-10-11 14:29 UTCEG score recompute
  17. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 75 more
  1. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-01 17:28 UTCVendor advisory
  3. 2026-10-01 17:28 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  4. 2026-10-01 16:45 UTCEG score recompute
  5. 2026-10-01 16:45 UTCVendor advisory
  6. 2026-10-01 16:45 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  7. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-09-21 12:30 UTCVendor advisory
  12. 2026-09-21 12:30 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  13. 2026-09-21 11:25 UTCEG score recompute
  14. 2026-09-21 11:25 UTCVendor advisory
  15. 2026-09-21 11:25 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  16. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-09-14 06:28 UTCEG score recompute
  22. 2026-09-14 06:28 UTCVendor advisory
  23. 2026-09-14 06:28 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  24. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  27. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-09-10 13:38 UTCVendor advisory
  29. 2026-09-10 13:38 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  30. 2026-09-10 12:26 UTCEG score recompute
  31. 2026-09-10 12:26 UTCVendor advisory
  32. 2026-09-10 12:26 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  33. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  34. 2026-09-09 15:32 UTCVendor advisory
  35. 2026-09-09 15:32 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  36. 2026-09-09 14:21 UTCVendor advisory
  37. 2026-09-09 14:21 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  38. 2026-09-09 12:38 UTCEG score recompute
  39. 2026-09-09 12:38 UTCVendor advisory
  40. 2026-09-09 12:38 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  41. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  42. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  43. 2026-09-07 13:50 UTCVendor advisory
  44. 2026-09-07 13:49 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  45. 2026-09-07 12:38 UTCVendor advisory
  46. 2026-09-07 12:37 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  47. 2026-09-06 17:24 UTCEG score recompute
  48. 2026-09-06 17:24 UTCVendor advisory
  49. 2026-09-06 17:24 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  50. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  51. 2026-09-05 13:23 UTCVendor advisory
  52. 2026-09-05 13:23 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  53. 2026-09-05 13:03 UTCEG score recompute
  54. 2026-09-05 13:03 UTCVendor advisory
  55. 2026-09-05 13:03 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  56. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  57. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  58. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  59. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  60. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  62. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-08-27 13:35 UTCVendor advisory
  64. 2026-08-27 13:35 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  65. 2026-08-27 13:01 UTCVendor advisory
  66. 2026-08-27 13:01 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  67. 2026-08-26 17:44 UTCVendor advisory
  68. 2026-08-26 17:44 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  69. 2026-08-26 16:23 UTCEG score recompute
  70. 2026-08-26 16:23 UTCVendor advisory
  71. 2026-08-26 16:23 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  72. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  73. 2026-08-26 12:20 UTCVendor advisory
  74. 2026-08-26 12:20 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  75. 2026-08-25 14:21 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-42965?
CVE-2026-42965 is a high-severity vulnerability; its CVE record was 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 made public?
CVE-2026-42965 was made public on April 17, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on May 29, 2026. EchelonGraph's copy of the record carries a last-modified date of October 1, 2026; the record at its source may have been updated since.
Is CVE-2026-42965 actively exploited?
CVE-2026-42965 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-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 (HIGH).
How do I remediate CVE-2026-42965?
A fix for CVE-2026-42965 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-42965 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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

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