{"id":"GHSA-48wf-g7cp-gr3m","summary":"OpenClaw has allowlist exec-guard bypass via env -S","details":"### Summary\nIn `allowlist` mode, `system.run` guardrails could be bypassed through `env -S`, causing policy-analysis/runtime-execution mismatch for shell wrapper payloads.\n\n### Severity Rationale (Medium)\nThis issue is rated **medium** because it is a guardrail/policy bypass in OpenClaw's trusted-operator model, not an authentication boundary break.\n\n- Authenticated Gateway callers are trusted operators by design.\n- `exec` approvals/allowlists are operator safety controls.\n- The bug still weakens expected safety behavior and can enable unintended command execution when untrusted content influences tool input.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Vulnerable versions: `\u003c= 2026.2.22-2`\n- Patched versions: `\u003e= 2026.2.23`\n\nLatest published npm version checked during triage: `2026.2.22-2`.\n\n### Technical Impact\nWhen `/usr/bin/env` is allowlisted, `env -S 'sh -c ...'` could be treated as allowed non-wrapper argv while runtime still executes shell-wrapper semantics.\n\n### Fix Commit(s)\n- `a1c4bf07c6baad3ef87a0e710fe9aef127b1f606` (core allowlist/runtime parity hardening)\n- `3f923e831364d83d0f23499ee49961de334cf58b` (explicit `env -S` regressions)\n\n### Release Process Note\n`patched_versions` is pre-set to `\u003e= 2026.2.23`, so this advisory is now public.\n\nOpenClaw thanks @tdjackey for reporting.","aliases":["CVE-2026-31992"],"modified":"2026-03-20T21:56:22.136756Z","published":"2026-03-03T18:00:06Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-03-03T18:00:06Z","nvd_published_at":null,"cwe_ids":["CWE-184","CWE-193"]},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-48wf-g7cp-gr3m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31992"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/3f923e831364d83d0f23499ee49961de334cf58b"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/a1c4bf07c6baad3ef87a0e710fe9aef127b1f606"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openclaw-allowlist-exec-guard-bypass-via-env-s"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.23"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-48wf-g7cp-gr3m/GHSA-48wf-g7cp-gr3m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"}]}