Dashboard / CVE-2026-109346

CVE-2026-109346

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-10-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Active
AT: None
VC: High
VI: High
VA: None

Description

better-auth from 1.3.8-beta.3 before 1.7.0-rc.3 contains a UI misrepresentation vulnerability in the deviceAuthorization plugin because GET /device omits the requesting client_id and scope. Attackers can start a device request via /device/code, trick signed-in users into approving the code, then redeem it at /device/token for a live session token.

Weakness Classification (1)

References & Advisories (2)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.28%
Raw Score 0.002780
Percentile 20.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00278
2026-10-28
0.00278

Intelligence Sources

mitre ref →
nvd ref →

External Links