CVE-2026-31992
Openclaw ≤ 2026.2.23
Raw 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:XSummary
CVE-2026-31992 is a high-severity Incomplete List of Disallowed Inputs (CWE-184) vulnerability in Openclaw Openclaw. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 27th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-31992 is an allowlist bypass vulnerability affecting the system.run guardrails in OpenClaw versions prior to 2026.2.23. The flaw enables authenticated operators to execute unintended commands by leveraging the allowlisting of /usr/bin/env. Attackers can use the env -S option to evade policy analysis and run shell wrapper payloads at runtime. Published on 2026-03-19, it carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) and maps to CWE-184.
The vulnerability can be exploited by authenticated operators requiring only low privileges, over a network vector with low attack complexity and no user interaction. Exploitation allows bypassing execution restrictions to run arbitrary commands, resulting in high integrity impact through unauthorized code execution and low availability impact.
Mitigation is addressed in OpenClaw version 2026.2.23 and later, with fixes detailed in GitHub commits 3f923e831364d83d0f23499ee49961de334cf58b and a1c4bf07c6baad3ef87a0e710fe9aef127b1f606, as well as the security advisory GHSA-48wf-g7cp-gr3m. Further analysis is provided in the VulnCheck advisory at https://www.vulncheck.com/advisories/openclaw-allowlist-exec-guard-bypass-via-env-s.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-13023
Vulnerability Data
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…
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runtime.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 2 hardening rules · 1 OS baseline
V3.5.2V4.4.2V16.2.5
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validity checks on inputs, which structurally replaces incomplete deny-lists with complete allow-list or sanitization logic.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require complete, positive input validation instead of incomplete denylists.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can discover missing input checks, but does not prevent the weakness during development.
Application security requirements can mandate complete input validation rules, but the control itself does not prescribe how to build those rules.
Secure architecture principles include robust input validation design, yet the control is broader than this single weakness.
Secure coding standards directly require exhaustive allow-lists or complete deny-lists for inputs, addressing the root cause of incomplete disallowed-input lists.