CVE-2026-59262: Affine Monorepo

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

AFFiNE's histories GraphQL field fails to validate Doc.Read permission before exposing document edit history, allowing authenticated workspace members to retrieve restricted content timelines. Attackers can supply arbitrary document GUIDs to access full edit histories including user names, emails, and timestamps of private pages they lack access to.

Affected products

• Affine Monorepo: before 0.26.3 (fixed in 0.26.3); up to and including 1f0bcd0

Published 2026-07-08. Last modified 2026-09-17.