CVE-2026-67336 in better-authinformazioni

Riassunto

di MITRE • 01/08/2026

better-auth versions before 1.6.11 contain insecure cryptographic defaults in the oidcProvider and mcp plugins that advertise the none algorithm and accept plain PKCE by default. Attackers can exploit algorithm negotiation to accept unsigned tokens or intercept authorization codes when PKCE plain is used instead of the required S256 method.

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An in-depth analysis is available in our curated vulnerability entry.

Responsabile

VulnCheck

Prenotare

29/07/2026

Divulgazione

01/08/2026

Moderazione

accettato

CPE

pronto

EPSS

0.00000

KEV

no

Attività

molto basso

Fonti

MITREhttps://www.cve.org/CVERecord?id=CVE-2026-67336
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-67336
CVE Detailshttps://www.cvedetails.com/cve/CVE-2026-67336/

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