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CVE-2026-42965

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:43e7a3a18aa7c24a487ab35a55484302babf2a11bced6db19fa75ef0c332fd96
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/affected/1

Affected products and versions

4 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-haproxy-router-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-42965"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/references/0
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-42965"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/references/0
{"name":"RHBZ#2483184","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2483184"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/references/1
{"name":"RHBZ#2483184","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2483184"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/cna/references/1
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42965.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1523181ecd6cf4acef65224c2426ace1831abebffd9919476bddc0f5fcd94e1 · sha256:1477598f1a57a951… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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