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TI-2026-22747 Aliases CVE-2026-28478GHSA-q447-rj3r-2cgh

OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering

Priority MEDIUM 44CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
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 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00507 43rd percentileScored 2026-11-07
Fix Fixed OpenClaw (OpenClaw): 2026.2.13openclaw (npm): 2026.2.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 2026.2.132026.2.13Patch availableCNA
—openclaw (npm)before 2026.2.132026.2.13Patch availableGHSA-q447-rj3r-2cgh
—clawdbot (npm)up to 2026.1.24-3—No fix listedGHSA-q447-rj3r-2cgh
  • OpenClaw VendorOpenClaw Affected before 2026.2.13 Fixed in 2026.2.13 Patch available CNA
  • openclaw (npm) Vendor— Affected before 2026.2.13 Fixed in 2026.2.13 Patch available GHSA-q447-rj3r-2cgh
  • clawdbot (npm) Vendor— Affected up to 2026.1.24-3 Fixed in — No fix listed GHSA-q447-rj3r-2cgh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*before 2026.2.13VulnerableOpenClaw
  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* Versions before 2026.2.13 Vulnerable ·OpenClaw

Remediation

  • Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.2.13
  • Fix · GHSA-q447-rj3r-2cgh openclaw (npm) Fixed in 2026.2.13 Advisory →

Fixed in the same release

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

  • Release ·

    OpenClaw 2026.2.13

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-22731 OpenClaw < 2026.2.13 - Path Traversal in Trace and Download Output PathsPriority MEDIUM 44
    • TI-2026-22744 OpenClaw < 2026.2.13 - Timing Attack via Hook Token ComparisonPriority LOW 28
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28478
  2. 2026-10-03 Alias added: GHSA-q447-rj3r-2cgh
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

Advisory 1

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

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