{"id":"CVE-2026-28391","aliases":["GHSA-qj77-c3c8-9c3q"],"url":"https://o3.security/vulnerability/CVE-2026-28391","summary":"OpenClaw < 2026.2.2 - Command Injection via cmd.exe Parsing Bypass in Allowlist Enforcement","details":"### Summary\n\nOn Windows nodes, exec requests were executed via `cmd.exe /d /s /c <rawCommand>`. In allowlist/approval-gated mode, the allowlist analysis did not model Windows `cmd.exe` parsing and metacharacter behavior. A crafted command string could cause `cmd.exe` to interpret additional operations (for example command chaining via `&`, or expansion via `%...%` / `!...!`) beyond what was allowlisted/approved.\n\n### Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected: `<= 2026.2.1`\n- Patched: `>= 2026.2.2`\n- Latest (npm) as of 2026-02-14: `2026.2.13`\n\n### Details\n\n- Default installs: Not affected unless you opt into exec allowlist/approval gating on Windows nodes.\n- Windows execution uses `cmd.exe` via `src/infra/node-shell.ts`.\n- The fix hardens Windows allowlist enforcement by:\n  - Passing the platform into allowlist analysis and rejecting Windows shell metacharacters.\n  - Treating `cmd.exe` invocation as not allowlist-safe on Windows.\n  - Avoiding `cmd.exe` entirely in allowlist mode by executing the parsed argv directly when possible.\n\n### Fix Commit(s)\n\n- `a7f4a53ce80c98ba1452eb90802d447fca9bf3d6`\n\nThanks @simecek for reporting.","published":"2026-03-05T21:59:19.792Z","modified":"2026-08-12T03:51:23.692923185Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.2.2"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/a7f4a53ce80c98ba1452eb90802d447fca9bf3d6","label":"openclaw/openclaw@a7f4a53"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28391.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-qj77-c3c8-9c3q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28391"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-command-injection-via-cmdexe-parsing-bypass-in-allowlist-enforcement"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/a7f4a53ce80c98ba1452eb90802d447fca9bf3d6"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:23.692923185Z"}}