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CVE-2026-34454

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be shown the sign-in page while the existing session cookie remains valid, meaning the browser session is not actually logged out. On shared workstations or devices, a subsequent user could continue to use t
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:489ab839ea069bf1d3ada5b93f2a15e590d92ce23e8f250178d55ebbda68316f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-384","description":"CWE-384: Session Fixation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-613","description":"CWE-613: Insufficient Session Expiration","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"oauth2-proxy","vendor":"oauth2-proxy","versions":[{"status":"affected","version":">= 7.11.0, < 7.15.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-384","description":"CWE-384: Session Fixation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-613","description":"CWE-613: Insufficient Session Expiration","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2","tags":["x_refsource_MISC"],"url":"https://github.com/oauth2-proxy/oauth2-proxy/releases/tag/v7.15.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/references/1
{"name":"https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-f24x-5g9q-753f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-f24x-5g9q-753f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bdc532af7b18c23b30e729af565f4ab7690936cb86d2a50f891157c6738118ad · sha256:4ddf07b5c3af94eb… · /containers/cna/references/0

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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