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CVE-2026-49332

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys (X-Forwarded-User) but does not strip underscore-variant keys (X_Forwarded_User) from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing an authenticated low-privilege user to smuggle a forged identity that may override the legitimate authenticated identity in the upstream application.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:144a532893a1f3f8cbef2dc645ed7bd11bef4980f6742eca8b45663b974605c7
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/affected/1

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-oauth-proxy-rhel9","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"openshift4/ose-oauth-proxy","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-436","description":"Interpretation Conflict","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-49332"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/references/0
{"name":"RHBZ#2483253","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2483253"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c797623c6883eb0b399c9d47c5102d7dec2ab8f47dd5a3aaee6098517d376ca1 · sha256:50217dd57c5369be… · /containers/cna/references/1

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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