Security readout for executives and security teams
Plain-English summary
OpenClaw before 2026.2.22 can be tricked into approving execution that should be blocked. The allowlist check may see an allowed wrapper while a different command actually runs. For leaders, the risk is unauthorized command execution inside systems that rely on OpenClaw’s system.run controls.
Executive priority
Prioritize remediation for environments where OpenClaw can execute operational commands or automation tasks. Treat this as high urgency if system.run is reachable by low-privileged users, service accounts, or automated workflows handling sensitive operations.
Technical view
CVE-2026-27566 is a CWE-78 allowlist bypass in OpenClaw system.run exec analysis. Sources say it fails to unwrap env and shell-dispatch wrapper chains, allowing non-allowlisted commands to execute while satisfying allowlist entries. CVSS v4.0 is 7.1, with network attack vector, low privileges, no user interaction, and high integrity impact.
Likely exposure
Exposure is most likely where OpenClaw versions earlier than 2026.2.22 are deployed and system.run allowlist controls are trusted. The source bundle’s affected-version metadata is sparse, so confirm exact applicability against the vendor advisory and deployed package versions.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates exploitation requires low privileges, no user interaction, and network reachability. Public descriptions identify the bypass class but should not be treated as proof of exploitation in the wild.
Researcher notes
The strongest evidence is the vendor advisory, patch commit, and VulnCheck advisory. The affected metadata appears limited, while the title and description state OpenClaw before 2026.2.22. Avoid broad product claims beyond OpenClaw and validate version semantics from vendor sources.
Mitigation direction
- Upgrade OpenClaw to 2026.2.22 or later where applicable.
- Review the GitHub advisory for exact fixed versions and vendor guidance.
- Confirm the patch commit is present in any forked or pinned builds.
- Restrict who can invoke workflows that reach system.run.
- Review allowlist policies for reliance on wrapper binaries or shell dispatch.
Validation and detection
- Inventory OpenClaw deployments and record exact versions.
- Identify workflows, agents, or integrations using system.run.
- Check whether deployed code includes the referenced patch commit.
- Review execution logs for unexpected wrapper-binary command paths.
- Verify allowlist enforcement after upgrading in a test environment.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-27566 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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.
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——VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L2.84.2VulnCheckVulnerability scoring details
Base CVSS 4.0 score
7.1HighVector: 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
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- GitHub Security Advisory (GHSA-jj82-76v6-933r)CVE reference, VulnCheck · vendor-advisory
- Patch CommitCVE reference, VulnCheck · patch
- VulnCheck Advisory: OpenClaw < 2026.2.22 - Allowlist Bypass via Wrapper Binary Unwrapping in system.runCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.