VulnSocial

CVE-2026-45337Disclosure(better-auth / better_auth)

LOWCVSS 7.6 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the deviceAuthorization plugin treats any authenticated session as the owner of any pending device code because GET /device does not claim the row and POST /device/approve and POST /device/deny short-circuit when userId is unset, allowing an authenticated attacker who learns a valid user_code to bind the polling device to the attacker's account or deny the legitimate flow. This issue is fixed in version 1.6.11.

better-auth CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-285CWE-345

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • better_auth

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
better-auth
Products
better_auth

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-15: 2Technical Details · 2026-07-15: 207-15
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-45337 Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the deviceAuthorization plugin treats any authenticated session as… https://www.cve.org/CVERecord?id=CVE-2026-45337 ----- Traducción: CVE-2026-45337 Bet… http://infoflow.cloud`

    Post summary

    The tweet announces CVE-2026-45337, providing a brief technical note about an authentication issue in the Better Auth TypeScript library without mentioning a PoC, exploit, or patch.

    0000030
    92 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-45337 Better Auth is an authentication and authorization library for TypeScript. From 1.6.0 until 1.6.11, the deviceAuthorization plugin treats any authenticated session as… https://www.cve.org/CVERecord?id=CVE-2026-45337

    Post summary

    The post announces a new vulnerability in Better Auth by describing affected versions and plugin behavior, but provides no PoC, exploit, or mitigation details.

    00000589
    57.8K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appbetter-authbetter_auth-node.js-

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