Is CVE-2026-35646 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-35646, but active exploitation has not been confirmed.

Can CVE-2026-35646 be exploited remotely?

Yes. CVE-2026-35646 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35646?

CVE-2026-35646 has a CVSS score of 6.5 (MEDIUM).

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MEDIUMPOC

CVE-2026-35646

CWE-307Published: April 9, 2026· Updated: Apr 15, 2026

6.5

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:17.4th

Official Description

OpenClaw before 2026.3.25 contains a pre-authentication rate-limit bypass vulnerability in webhook token validation that allows attackers to brute-force weak webhook secrets. The vulnerability exists because invalid webhook tokens are rejected without throttling repeated authentication attempts, enabling attackers to guess weak tokens through rapid successive requests.

NVD Source

Technical Analysis

CVE-2026-35646 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2026-35646. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.