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TI-2026-27729 Aliases CVE-2026-35628GHSA-vcx4-4qxg-mfp4

OpenClaw < 2026.3.25 - Brute-Force Attack via Missing Telegram Webhook Rate Limiting

Priority LOW 28CWE-307Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-307.

Summary

OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in Telegram webhook authentication that allows attackers to brute-force weak webhook secrets. The vulnerability enables repeated authentication guesses without throttling, permitting attackers to systematically guess webhook secrets through brute-force attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd percentileScored 2026-11-07
Fix Fixed OpenClaw (OpenClaw): 2026.3.25

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 2026.3.252026.3.25Patch availableCNA
—openclaw (npm)up to 2026.3.24—No fix listedGHSA-vcx4-4qxg-mfp4
  • OpenClaw VendorOpenClaw Affected before 2026.3.25 Fixed in 2026.3.25 Patch available CNA
  • openclaw (npm) Vendor— Affected up to 2026.3.24 Fixed in — No fix listed GHSA-vcx4-4qxg-mfp4

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*before 2026.3.25VulnerableOpenClaw
  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* Versions before 2026.3.25 Vulnerable ·OpenClaw

Remediation

  • Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.3.25

Fixed in the same release

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

  • Release ·

    OpenClaw 2026.3.25

    11 records Highest priority Priority LOW 11 LOW

    Other records, highest priority first

    • TI-2026-27726 OpenClaw < 2026.3.25 - Privilege Escalation via Silent Local Shared-Auth ReconnectPriority LOW 38
    • TI-2026-27741 OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request ParsingPriority LOW 37
    • TI-2026-26762 OpenClaw < 2026.3.25 - Improper Access Control in /sessions/:sessionKey/kill EndpointPriority LOW 34
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35628
  2. 2026-10-03 Alias added: GHSA-vcx4-4qxg-mfp4

References

Patch 1

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