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Vulnerability details: VCID-nue7-qr3q-e3h4
Vulnerability ID VCID-nue7-qr3q-e3h4
Aliases CVE-2026-42434
GHSA-736r-jwj6-4w23
Summary OpenClaw versions 2026.4.5 before 2026.4.10 contain a sandbox escape vulnerability allowing sandboxed agents to override exec routing by specifying host=node. Attackers can bypass sandbox boundaries and route execution to remote nodes instead of intended sandbox paths.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-863 Incorrect Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2026-42434
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2026-42434
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2026-42434
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2026-42434
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-736r-jwj6-4w23
cvssv3.1 8.8 https://github.com/openclaw/openclaw
cvssv4 8.3 https://github.com/openclaw/openclaw
generic_textual HIGH https://github.com/openclaw/openclaw
cvssv3.1 8.8 https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
cvssv4 8.3 https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
cvssv4 8.7 https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
generic_textual HIGH https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
ssvc Track https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
cvssv3.1 8.8 https://github.com/openclaw/openclaw/pull/63880
cvssv4 8.3 https://github.com/openclaw/openclaw/pull/63880
generic_textual HIGH https://github.com/openclaw/openclaw/pull/63880
cvssv3.1 8.8 https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
cvssv3.1_qr HIGH https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
cvssv4 8.3 https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
cvssv4 8.7 https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
generic_textual HIGH https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
ssvc Track https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2026-42434
cvssv4 8.3 https://nvd.nist.gov/vuln/detail/CVE-2026-42434
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-42434
cvssv3.1 8.8 https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
cvssv4 8.3 https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
cvssv4 8.7 https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
generic_textual HIGH https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
ssvc Track https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-42434
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/pull/63880
https://nvd.nist.gov/vuln/detail/CVE-2026-42434
dffad08529202edbf34e4808788e1182fe10f6a9 https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
GHSA-736r-jwj6-4w23 https://github.com/advisories/GHSA-736r-jwj6-4w23
GHSA-736r-jwj6-4w23 https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/openclaw/openclaw
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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high

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required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://github.com/openclaw/openclaw
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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passive

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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present

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passive

active

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-05T12:24:52Z/ Found at https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/openclaw/openclaw/pull/63880
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://github.com/openclaw/openclaw/pull/63880
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

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present

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passive

active

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

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present

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passive

active

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

active

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-05T12:24:52Z/ Found at https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42434
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42434
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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none

passive

active

high

low

none

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N Found at https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

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low

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low

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

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low

none

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none

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none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-05-05T12:24:52Z/ Found at https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
Exploit Prediction Scoring System (EPSS)
Percentile 0.20472
EPSS Score 0.00065
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:44:19.557406+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/42xxx/CVE-2026-42434.json 38.6.0