{"id":"CVE-2026-31992","aliases":["EUVD-2026-13023","GHSA-48wf-g7cp-gr3m"],"status":"published","title":"OpenClaw \u003c 2026.2.23 - Allowlist Exec-Guard Bypass via env -S","description":"OpenClaw versions prior to 2026.2.23 contain an allowlist bypass vulnerability in system.run guardrails that allows authenticated operators to execute unintended commands. When /usr/bin/env is allowlisted, attackers can use env -S to bypass policy analysis and execute shell wrapper payloads at runtime.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00352,"percentile":0.2928,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-184","CWE-193"],"published":"2026-03-03T18:00:06Z","modified":"2026-10-28T02:30:35Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.23"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.23"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.23"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-48wf-g7cp-gr3m","tags":["vendor-advisory","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/a1c4bf07c6baad3ef87a0e710fe9aef127b1f606","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/3f923e831364d83d0f23499ee49961de334cf58b","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-allowlist-exec-guard-bypass-via-env-s","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31992","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-48wf-g7cp-gr3m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31992.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-31992","title":"OpenClaw \u003c 2026.2.23 - Allowlist Exec-Guard Bypass via env -S","description":"OpenClaw versions prior to 2026.2.23 contain an allowlist bypass vulnerability in system.run guardrails that allows authenticated operators to execute unintended commands. When /usr/bin/env is allowlisted, attackers can use env -S to bypass policy analysis and execute shell wrapper payloads at runtime.","status":"published","published":"2026-03-19T01:00:51.216Z","modified":"2026-06-23T16:14:21.247Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T14:19:50.92611Z"}],"euvd":[{"id":"EUVD-2026-13023","description":"OpenClaw versions prior to 2026.2.23 contain an allowlist bypass vulnerability in system.run guardrails that allows authenticated operators to execute unintended commands. When /usr/bin/env is allowlisted, attackers can use env -S to bypass policy analysis and execute shell wrapper payloads at runtime.","status":"published","published":"2026-03-19T01:00:51Z","modified":"2026-06-23T16:14:21Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:20:32.768333Z"}],"ghsa":[{"id":"GHSA-48wf-g7cp-gr3m","title":"OpenClaw has allowlist exec-guard bypass via env -S","description":"### 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.","status":"published","published":"2026-03-03T18:00:06Z","modified":"2026-03-20T21:36:25Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"cwes":["CWE-184","CWE-193"],"updated_at":"2026-11-02T14:39:40.633038Z"}],"nvd":[{"id":"CVE-2026-31992","description":"OpenClaw versions prior to 2026.2.23 contain an allowlist bypass vulnerability in system.run guardrails that allows authenticated operators to execute unintended commands. When /usr/bin/env is allowlisted, attackers can use env -S to bypass policy analysis and execute shell wrapper payloads at runtime.","status":"published","published":"2026-03-19T02:16:04.07Z","modified":"2026-06-17T10:34:53.673Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T14:12:09.735529Z"}],"osv":[{"id":"CVE-2026-31992","title":"OpenClaw \u003c 2026.2.23 - Allowlist Exec-Guard Bypass via env -S","description":"OpenClaw versions prior to 2026.2.23 contain an allowlist bypass vulnerability in system.run guardrails that allows authenticated operators to execute unintended commands. When /usr/bin/env is allowlisted, attackers can use env -S to bypass policy analysis and execute shell wrapper payloads at runtime.","status":"published","published":"2026-03-19T01:00:51.216Z","modified":"2026-10-28T02:30:35.456954112Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T15:45:01.218144Z"},{"id":"GHSA-48wf-g7cp-gr3m","title":"OpenClaw has allowlist exec-guard bypass via env -S","description":"### 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.","status":"published","published":"2026-03-03T18:00:06Z","modified":"2026-03-20T21:56:22.136756Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"cwes":["CWE-184","CWE-193"],"updated_at":"2026-11-02T15:46:36.782754Z"}]}}