P5Verified

CVE-2025-71402: better-auth 0 to before 1.4.0

CVE-2025-71402. EPSS 0.00268 (percentile 0.17195), scored 2026-10-05.

Affected technology

better-auth · 0 to before 1.4.0
better-auth

Description’s affected range: versions greater than 1.3.34 and before 1.4.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · High privileges required · Passive user interaction

What an attacker can do

An attacker can supply a forged _multi-* cookie to trigger deletion of arbitrary session tokens. Vendor/CNA’s CVSS 4.0 assessment (base score 2.0/10) rates confidentiality, integrity and availability impact as low.

Published 2026-10-07 02:35:20.456933+00:00

CWE: CWE-347
CCR priority: 0.1 /100 (P5)
EPSS: 0.00268 · percentile 0.17195 · 2026-10-05
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-07 02:34:12.333111+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-71402.html