CVE-2026-92760

MediumCVSS 6.5/10Last modified Sep 23, 2026

Description

Shlink through 5.1.6 fails to enforce API key role restrictions when issuing Mercure subscription tokens, allowing restricted keys to subscribe to all topics. Attackers with author-only or domain-only keys can access the mercure-info endpoint to receive visit data including referrer, user agent, geolocation, and full short URL objects for URLs outside their authorization boundary.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-863

Affected software

No affected versions have been published.

Timeline

Published: Sep 16, 2026
Last modified: Sep 23, 2026
NVD status: Deferred

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