Lightdash through 2.556.0 Authorization Bypass via Personal Access Token Deletion

Advisories

Lightdash through 2.556.0 Authorization Bypass via Personal Access Token Deletion

severity: low
date: 10/11/2026
Affecting: lightdash <= 2.556.0
CVE: CVE-2026-108747
CWE: CWE-639 Authorization Bypass Through User-Controlled Key
CVSS: 2.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind03/lightdash-pat-delete-ownership-bypass-20261011
https://github.com/lightdash/lightdash/blob/c890f0b982efb51f1f8d1535d4e334447cec2ed7/packages/backend/src/services/PersonalAccessTokenService.ts#L107-L134
https://github.com/lightdash/lightdash/blob/c890f0b982efb51f1f8d1535d4e334447cec2ed7/packages/backend/src/models/DashboardModel/PersonalAccessTokenModel.ts#L157-L162
https://github.com/lightdash/lightdash
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: Lightdash through 2.556.0 contains an authorization bypass vulnerability that allows authenticated organization members to delete other users' personal access tokens by supplying their UUID. Attackers can send DELETE requests to the personal-access-tokens route with a victim's token UUID, even across organizations, to revoke it and break API integrations.

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