Read the docs
TI-2026-22669 Aliases CVE-2026-28394GHSA-p536-vvpp-9mc8

OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool

Priority LOW 31CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.

Summary

OpenClaw versions prior to 2026.2.15 contain a denial of service vulnerability in the web_fetch tool that allows attackers to crash the Gateway process through memory exhaustion by parsing oversized or deeply nested HTML responses. Remote attackers can social-engineer users into fetching malicious URLs with pathological HTML structures to exhaust server memory and cause service unavailability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00462 40th percentileScored 2026-11-07
Fix Fixed OpenClaw (OpenClaw): 2026.2.15openclaw (npm): 2026.2.15

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 2026.2.152026.2.15Patch availableCNA
—openclaw (npm)before 2026.2.152026.2.15Patch availableGHSA-p536-vvpp-9mc8
  • OpenClaw VendorOpenClaw Affected before 2026.2.15 Fixed in 2026.2.15 Patch available CNA
  • openclaw (npm) Vendor— Affected before 2026.2.15 Fixed in 2026.2.15 Patch available GHSA-p536-vvpp-9mc8

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*before 2026.2.15VulnerableOpenClaw
  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* Versions before 2026.2.15 Vulnerable ·OpenClaw

Remediation

  • Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.2.15
  • Fix · GHSA-p536-vvpp-9mc8 openclaw (npm) Fixed in 2026.2.15 Advisory →

Fixed in the same release

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

  • Release ·

    OpenClaw 2026.2.15

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-22748 OpenClaw < 2026.2.15 - Cache Poisoning via Deprecated SHA-1 Hash in Sandbox ConfigurationPriority MEDIUM 43
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28394
  2. 2026-10-03 Alias added: GHSA-p536-vvpp-9mc8

References

Patch 1

Advisory 1

Other 2

  • 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