Renovate affected by remote code execution was possible using the bazel-module or bazelisk managers, when using lockFileMaintenance

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.3 · CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H

EPSS

• CVE-2026-76226: 0.29% estimated exploitation activity in the next 30 days; percentile 22.12 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

When using lockFileMaintenance using the bazel-module or bazelisk managers between Renovate 43.65.0 (2026-03-12) and 43.102.11 (2026-04-02), there was the opportunity for remote code execution from a malicious dependency, if the Bazel module executes code that relies on a dependency. As this is an "unsafe" execution path, we have disabled this by default, and self-hosted administrators must add it to the allowedUnsafeExecutions allowlist. It is recommended to review whether you have enabled this functionality for these managers, and if so, whether any dependency updates may have led to remote code execution. Impact If Renovate suggested an update to a malicious dependency, and that dependency is referenced as part of the bazel mod deps call - for instance as part of a ctx.execute call - this would call attacker-controlled code. This could lead to insider attackers and outside attackers, executing code that is distributed as part of the package. Patches This is patched in 43.102.11.…

Published by the source

16 Apr 2026, 01:34 UTC

Last modified by the source

20 Aug 2026, 04:04 UTC

Source last checked

26 Oct 2026, 12:48 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-5vjq-5jmg-39xq

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-5vjq-5jmg-39xq

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# Patch Next advisory brief: CVE-2026-76226

Advisory: Renovate affected by remote code execution was possible using the bazel-module or bazelisk managers, when using lockFileMaintenance
IDs: CVE-2026-76226, GHSA-5vjq-5jmg-39xq
Record: https://patchnext.com/advisories/cve-2026-76226 (revision 2, source checked 26 Oct 2026, 12:48 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: renovate 43.102.11. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm renovate: affected >= 43.65.0, < 43.102.11; fixed in 43.102.11

## Suggested inspection (read-only)
- `npm ls renovate --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on renovate.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-5vjq-5jmg-39xq (OSV record GHSA-5vjq-5jmg-39xq lists affected ranges: npm renovate >=43.65.0 <43.102.11 (fixed))
- Verified: https://github.com/advisories/GHSA-5vjq-5jmg-39xq (GitHub-reviewed advisory GHSA-5vjq-5jmg-39xq lists affected ranges: npm renovate >=43.65.0 <43.102.11)

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