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

Also known asEUVD-2026-33275 (ENISA EUVD) · GHSA-76ww-43j5-78x5 (GitHub Security Advisories)Source: ENISA EUVD

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: 0.4%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.
Exploitation0.4% × 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
0.4%
EPSS %ILE
34th
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
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). 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, and whom BOD 26-04 binds: 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.

The score's inputs: 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

November 4, 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 8× in last 7d / 40× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 387 rows 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 287 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-11-12 02:46 UTCEchelonGraph re-scored
  3. 2026-11-12 02:46 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  4. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  5. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  6. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  7. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  10. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-11-04 16:27 UTCVendor advisory
  13. 2026-11-04 16:27 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  14. 2026-11-04 15:31 UTCEchelonGraph re-scored
  15. 2026-11-04 15:31 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  16. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  17. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  18. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  19. 2026-11-01 10:21 UTCEchelonGraph re-scored
  20. 2026-11-01 10:21 UTCVendor advisory
  21. 2026-11-01 10:21 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  22. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  23. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  24. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  25. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
Show 75 more
  1. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-25 14:28 UTCEchelonGraph re-scored
  5. 2026-10-25 00:17 UTCEchelonGraph re-scored
  6. 2026-10-25 00:17 UTCVendor advisory
  7. 2026-10-25 00:17 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  8. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  14. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-18 03:40 UTCEchelonGraph re-scored
  16. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-17 14:17 UTCEchelonGraph re-scored
  18. 2026-10-17 14:17 UTCVendor advisory
  19. 2026-10-17 14:17 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  20. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-10-12 16:06 UTCEchelonGraph re-scored
  26. 2026-10-11 19:48 UTCEchelonGraph re-scored
  27. 2026-10-11 17:03 UTCEchelonGraph re-scored
  28. 2026-10-11 14:29 UTCEchelonGraph re-scored
  29. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  30. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  31. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  32. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  33. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  34. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  35. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  36. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  37. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  39. 2026-10-01 17:28 UTCVendor advisory
  40. 2026-10-01 17:28 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  41. 2026-10-01 16:45 UTCEchelonGraph re-scored
  42. 2026-10-01 16:45 UTCVendor advisory
  43. 2026-10-01 16:45 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  44. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  45. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  46. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  47. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  48. 2026-09-21 12:30 UTCVendor advisory
  49. 2026-09-21 12:30 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  50. 2026-09-21 11:25 UTCEchelonGraph re-scored
  51. 2026-09-21 11:25 UTCVendor advisory
  52. 2026-09-21 11:25 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  53. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  54. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  55. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  56. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  57. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  58. 2026-09-14 06:28 UTCEchelonGraph re-scored
  59. 2026-09-14 06:28 UTCVendor advisory
  60. 2026-09-14 06:28 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  61. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  62. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  63. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  64. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  65. 2026-09-10 13:38 UTCVendor advisory
  66. 2026-09-10 13:38 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  67. 2026-09-10 12:26 UTCEchelonGraph re-scored
  68. 2026-09-10 12:26 UTCVendor advisory
  69. 2026-09-10 12:26 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  70. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  71. 2026-09-09 15:32 UTCVendor advisory
  72. 2026-09-09 15:32 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  73. 2026-09-09 14:21 UTCVendor advisory
  74. 2026-09-09 14:21 UTCGHSA enrichmentGHSA-76ww-43j5-78x5 · GitHub severity HIGH · GitHub CVSS 7.7
  75. 2026-09-09 12:38 UTCEchelonGraph re-scored

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 November 4, 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 0.4% probability of exploitation in the next 30 days (34th 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 + 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

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