Vulnerability · Published Oct 11, 2026 · Assigned by VulnCheck

CVE-2026-108747Lightdash through 2.556.0 Authorization Bypass via Personal Access Token Deletion

Medium 4.2

In plain English

A medium-severity authorization bypass via user-controlled key in lightdash from Lightdash. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.2%top 88.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Lightdash	lightdash	0 – through 2.556.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

References

https://hackmd.io/@haind03/lightdash-pat-delete-ownership-bypass-20261011 third-party-advisory
https://github.com/lightdash/lightdash/blob/c890f0b982efb51f1f8d1535d4e334447cec2ed7/packages/backend/src/services/PersonalAccessTokenService.ts#L107-L134 technical-description
https://github.com/lightdash/lightdash/blob/c890f0b982efb51f1f8d1535d4e334447cec2ed7/packages/backend/src/models/DashboardModel/PersonalAccessTokenModel.ts#L157-L162 technical-description
https://github.com/lightdash/lightdash product
VulnCheck Advisory: Lightdash through 2.556.0 Authorization Bypass via Personal Access Token Deletion third-party-advisory