{"id":"CVE-2026-76226","aliases":["GHSA-5vjq-5jmg-39xq"],"url":"https://o3.security/vulnerability/CVE-2026-76226","summary":"Renovate 43.65.0 before 43.102.11 Remote Code Execution via lockFileMaintenance","details":"When using [`lockFileMaintenance`](https://docs.renovatebot.com/configuration-options/#lockfilemaintenance) using the [bazel-module](https://docs.renovatebot.com/modules/manager/bazel-module/) or [bazelisk](https://docs.renovatebot.com/modules/manager/bazelisk/) managers between Renovate [43.65.0](https://github.com/renovatebot/renovate/releases/tag/43.65.0) (2026-03-12) and [43.102.11](https://github.com/renovatebot/renovate/releases/tag/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_.\n\nAs this is an \"unsafe\" execution path, we have disabled this by default, and self-hosted administrators must add it to the [`allowedUnsafeExecutions`](https://docs.renovatebot.com/self-hosted-configuration/#allowedunsafeexecutions) allowlist.\n\nIt 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.\n\n## Impact\n\nIf 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.\n\nThis could lead to [insider attackers](https://docs.renovatebot.com/security-and-permissions/#execution-of-code-insider-attack) and [outside attackers](https://docs.renovatebot.com/security-and-permissions/#execution-of-code-outsider-attack), executing code that is distributed as part of the package.\n \n## Patches\n\nThis is patched in [43.102.11](https://github.com/renovatebot/renovate/releases/tag/43.102.11).\n\nThis does not affect any versions of [Mend Renovate Self-Hosted](https://www.mend.io/renovate/).\n\n## Workarounds\n\n- Upgrade your Renovate version\n- Disable `lockFileMaintenance` for these managers\n\n## Why did this happen?\n\nThis was missed in code review (as part of https://github.com/renovatebot/renovate/pull/41507).","published":"2026-08-19T14:02:08.689Z","modified":"2026-10-28T02:30:22.406638898Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"renovate","fixedVersion":"43.102.11"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76226.json"},{"type":"ADVISORY","url":"https://github.com/renovatebot/renovate/security/advisories/GHSA-5vjq-5jmg-39xq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76226"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/renovate-through-remote-code-execution-via-lockfilemaintenance"},{"type":"PACKAGE","url":"https://github.com/renovatebot/renovate"},{"type":"WEB","url":"https://github.com/renovatebot/renovate/releases/tag/43.102.11"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:22.406638898Z"}}