CVE-2026-44999Network attack vector

Prompt-injection amplification via dropped cron trust flags

Published May 11, 2026 · Updated May 11, 2026

Improper trust labeling in OpenClaw before 2026.4.20 allows remote attackers to amplify prompt injection through webhook-triggered cron output. queueCronAwarenessSystemEvent omitted trusted: false, while buildGatewayCronService discarded the optional trust flag when forwarding events. Exploitation requires a webhook-triggered isolated cron run; the resulting trusted System rendering strengthens injected instructions but directly bypasses neither Gateway authentication, tool policy, nor sandboxing.

CVSS severity6.3
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper trust labeling in OpenClaw before 2026.4.20 allows remote attackers to amplify prompt injection through webhook-triggered cron output. queueCronAwarenessSystemEvent omitted trusted: false, while buildGatewayCronService discarded the optional trust flag when forwarding events. Exploitation requires a webhook-triggered isolated cron run; the resulting trusted System rendering strengthens injected instructions but directly bypasses neither Gateway authentication, tool policy, nor sandboxing.

The record

CVE
CVE-2026-44999
Published
May 11, 2026
Updated
May 11, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-345, T1036
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.4.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.4.20

Published CVSS scores

6.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
5.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1036Masquerading

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo