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CVE Record

CVE-2026-31992: OpenClaw < 2026.2.23 - Allowlist Exec-Guard Bypass via env -S

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.

HighCVSS 7.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-31992 lets a logged-in OpenClaw operator bypass command allowlist guardrails and run unintended commands when /usr/bin/env is permitted. This is not an unauthenticated internet takeover, but it can turn limited operator access into damaging command execution. OpenClaw versions before 2026.2.23 are identified as affected.

Executive priority

Treat as a high-priority remediation for OpenClaw environments with operator command execution enabled. Prioritize patching before routine maintenance if OpenClaw is used for automation, deployment, or administrative workflows where unintended commands could affect production systems.

Technical view

OpenClaw system.run policy analysis can be bypassed through /usr/bin/env behavior involving env -S. If /usr/bin/env is allowlisted, runtime execution may differ from the guardrail’s analysis, allowing unintended shell wrapper execution. CVSS v4.0 is 7.1 high, with network attack vector, low complexity, and low privileges required.

Likely exposure

Exposure is most likely in OpenClaw deployments before 2026.2.23 where authenticated operators can use system.run and /usr/bin/env is allowlisted. Systems without operator access paths or without this allowlist condition appear less exposed based on the provided sources.

Exploitation context

Sources describe authenticated exploitation requiring low privileges and no user interaction. The CVE is not listed as CISA KEV in the provided bundle, and no cited source here establishes active exploitation in the wild.

Researcher notes

The source bundle states OpenClaw versions before 2026.2.23 are affected, but the structured affected entry lists version “0” with defaultStatus “unaffected,” which is inconsistent. Rely on the vendor advisory and patch references for final scoping. No public active exploitation evidence is provided here.

Mitigation direction

  • Upgrade OpenClaw to version 2026.2.23 or later.
  • Review the GitHub advisory and patch commits for vendor-confirmed remediation details.
  • Review system.run allowlists, especially any allowance for /usr/bin/env.
  • If vendor guidance permits, remove /usr/bin/env from allowlists until patched.
  • Audit operator accounts and restrict system.run access to necessary users only.

Validation and detection

  • Inventory OpenClaw instances and record their installed versions.
  • Identify whether system.run is enabled for authenticated operators.
  • Check allowlist configuration for /usr/bin/env.
  • Confirm the 2026.2.23 fix or referenced patch commits are present.
  • Review logs for unusual system.run activity by operator accounts.
Prepared
Confidence
medium
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-184: Exact CWE lookup

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Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-31992 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.1 (4.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
1ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N——VulnCheck
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L2.84.2VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

7.1High
CVSS 4.0 vector shape for CVE-2026-31992Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
OpenClawOpenClaw0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-184 · source CWE mapping

Incomplete List of Disallowed Inputs

Incomplete List of Disallowed Inputs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.