CVE-2026-113597 PUBLISHED

Blinko through 1.8.8 contains an insecure direct object reference vulnerability in the tag tRPC router that allows authenticated users to read and modify other users' tags by supplying arbitrary tag IDs. Attackers can enumerate sequential IDs via fullTagNameById, updateTagIcon, and updateTagOrder to reveal private note topics and tamper with tag icons and ordering.

• lighthousekeeper1212 finder
• leediay153 from Viettel Post reporter

• https://github.com/blinkospace/blinko/issues/1112
• https://github.com/blinkospace/blinko/pull/1171
• https://github.com/blinkospace/blinko/blob/1.8.8/server/routerTrpc/tag.ts
• VulnCheck Advisory: Blinko through 1.8.8 IDOR via Tag tRPC Router Procedures

• Authorization Bypass Through User-Controlled Key CWE