CVE-2026-28461

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

OpenClaw versions prior to 2026.3.1 contain an unbounded memory growth vulnerability in the Zalo webhook endpoint that allows unauthenticated attackers to trigger in-memory key accumulation by varying query strings. Remote attackers can exploit this by sending repeated requests with different query parameters to cause memory pressure, process instability, or out-of-memory conditions that degrade service availability.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

VendorProductVersions
OpenClawOpenClaw< 2026.3.1

References

Timeline

Published
Mar 19, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-28461: High severity, CVSS 7.5 | Vulnix