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EUVD-2026-25617Published

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.5, the clientPrivileges option documents a create action, but the OAuth client creation endpoints did not invoke the hook before persisting new clients.…

Exact source revision recorded 28 Oct 2026 05:09:47 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-25617

Published

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.5, the clientPrivileges option documents a create action, but the OAuth client creation endpoints did not invoke the hook before persisting new clients. Deployments that configured clientPrivileges to restrict client registration were not actually restricted — any authenticated user could reach the create endpoints and register an OAuth client with attacker-chosen redirect URIs and metadata. This vulnerability is fixed in 1.6.5.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 24, 2026, 7:23:20 PM

dateUpdated: Apr 27, 2026, 1:42:23 PM

Source published
Apr 24, 2026, 7:23:20 PM (timezone not stated)
Source modified
Apr 27, 2026, 1:42:23 PM (timezone not stated)
Observed here
28 Oct 2026 05:09:47 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 4.0 · 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N

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Sources read 30 Oct 03:06 UTC · 272 of 272 readable · 271 fully read · documentation 469/469 current

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