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Advisories

better-auth Stale Sessions Persist After User Deletion

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severity
low
date
Affecting

  • better-auth >= 0.3.4, < 1.6.11

  • better-auth >= 1.6.0, < 1.6.11

CWE
  • CWE-459 Incomplete Cleanup
CVSS
5.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
iruizsalinas
Description
better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionInDatabase is false. Attackers can reuse deleted user session tokens to maintain authentication for up to seven days after account deletion.

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