Description
OpenClaw before 2026.4.4 contains a race condition vulnerability in shared-secret authentication that allows concurrent asynchronous requests to bypass the per-key rate-limit budget. Attackers can exploit this by sending multiple simultaneous authentication attempts to circumvent intended rate-limiting protections on Tailscale-capable paths.
Published: 2026-04-28
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Rate limit bypass enabling repeated authentication attempts, risking brute‑force and potential denial of service
Action: Patch Immediately
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-25wv-8phj-8p7r OpenClaw: Concurrent async auth attempts can bypass the intended shared-secret rate-limit budget on Tailscale-capable paths
History

Thu, 30 Apr 2026 03:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Description OpenClaw before 2026.4.4 contains a race condition vulnerability in shared-secret authentication that allows concurrent asynchronous requests to bypass the per-key rate-limit budget. Attackers can exploit this by sending multiple simultaneous authentication attempts to circumvent intended rate-limiting protections on Tailscale-capable paths.
Title OpenClaw < 2026.4.4 - Rate-Limit Bypass via Concurrent Async Authentication Attempts
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-362
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-29T12:47:08.361Z

Reserved: 2026-04-22T15:20:49.859Z

Link: CVE-2026-41913

cve-icon Vulnrichment

Updated: 2026-04-29T12:47:03.419Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-28T19:37:45.103

Modified: 2026-04-30T14:15:24.993

Link: CVE-2026-41913

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-29T01:30:06Z

Weaknesses