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TI-2026-38855 Aliases CVE-2026-53859GHSA-gxg4-2rrr-jhc7

OpenClaw < 2026.5.26 - Hostname Validation Bypass via Trailing-Dot Inconsistency

Priority LOW 26CWE-1023Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.

Summary

OpenClaw before 2026.5.26 contains a hostname validation vulnerability allowing attackers to bypass blocklist comparisons using trailing-dot notation in model or workspace-derived URLs. Attackers can exploit inconsistent hostname checks to reach destinations that operators intended to block through hostname policies.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0021 11th percentileScored 2026-11-07
Fix Fixed OpenClaw (OpenClaw): 2026.5.26openclaw (npm): 2026.5.26

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenClawOpenClawbefore 2026.5.262026.5.26Patch availableCNA
—openclaw (npm)before 2026.5.262026.5.26Patch availableGHSA-gxg4-2rrr-jhc7
  • OpenClaw VendorOpenClaw Affected before 2026.5.26 Fixed in 2026.5.26 Patch available CNA
  • openclaw (npm) Vendor— Affected before 2026.5.26 Fixed in 2026.5.26 Patch available GHSA-gxg4-2rrr-jhc7

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*before 2026.5.26VulnerableOpenClaw
cpe:2.3:a:openclaw:openclaw:2026.5.26:beta1:*:*:*:node.js:*:*2026.5.26 beta1VulnerableOpenClaw
cpe:2.3:a:openclaw:openclaw:2026.5.26:beta2:*:*:*:node.js:*:*2026.5.26 beta2VulnerableOpenClaw
  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* Versions before 2026.5.26 Vulnerable ·OpenClaw
  • cpe:2.3:a:openclaw:openclaw:2026.5.26:beta1:*:*:*:node.js:*:* Versions 2026.5.26 beta1 Vulnerable ·OpenClaw
  • cpe:2.3:a:openclaw:openclaw:2026.5.26:beta2:*:*:*:node.js:*:* Versions 2026.5.26 beta2 Vulnerable ·OpenClaw

Remediation

  • Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.5.26
  • Fix · GHSA-gxg4-2rrr-jhc7 openclaw (npm) Fixed in 2026.5.26 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    OpenClaw 2026.5.26

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-38839 OpenClaw < 2026.5.26 - Node Token Revocation Bypass via Pairing-Scoped Device SessionPriority LOW 39
    • TI-2026-38860 OpenClaw < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control VariablesPriority LOW 35
    • TI-2026-38844 OpenClaw < 2026.5.26 - Exec Allowlist Bypass via Transparent Command WrappersPriority LOW 11
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53859
  2. 2026-10-03 Alias added: GHSA-gxg4-2rrr-jhc7

References

Advisory 2

Other 1

  • TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read CVSS 4.0HIGH 8.7
  • TI-2026-20394 Exposure of resource to wrong sphere in OpenClaw CVSS 3.1HIGH 8.8
  • TI-2026-27742 OpenClaw < 2026.3.24 - Arbitrary Code Execution via .npmrc in Local Plugin/Hook Installation CVSS 4.0HIGH 8.4
  • TI-2026-27766 OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing CVSS 4.0MEDIUM 6.9
  • TI-2026-07315 OpenClaw bluebubbles Webhook monitor.ts handleBlueBubblesWebhookRequest improper authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-17789 OpenClaw < 2026.2.22 - Allowlist Bypass via Command Substitution in system.run CVSS 4.0HIGH 7.5
See all 574 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences