Is CVE-2026-28461 actively exploited?

No active exploitation of CVE-2026-28461 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28461 be exploited remotely?

Yes. CVE-2026-28461 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28461?

CVE-2026-28461 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-28461

CWE-770Published: March 19, 2026· Updated: Mar 19, 2026

7.5

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-28461 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 successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.