CVE-2026-75414Public exploitNetwork attack vector

Unauthenticated command execution via unfiltered JUEL evaluation

Published Aug 26, 2026 · Updated Aug 26, 2026

Expression injection in AntFlow 2.0.0 allows remote attackers to execute operating-system commands through a crafted JUEL expression. The evalExpression endpoint passes the el parameter to JuelEvaluator, which creates and evaluates the expression without validating its content. No authentication token is present in the published request, and the demonstrated payload invokes Java Runtime.exec to read and transmit a server file.

CVSS severity9.8
Critical
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Expression injection in AntFlow 2.0.0 allows remote attackers to execute operating-system commands through a crafted JUEL expression. The evalExpression endpoint passes the el parameter to JuelEvaluator, which creates and evaluates the expression without validating its content. No authentication token is present in the published request, and the demonstrated payload invokes Java Runtime.exec to read and transmit a server file.

The record

CVE
CVE-2026-75414
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8TenableCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5TenableAV:N/AC:L/Au:N/C:P/I:P/A:P

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.

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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 exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

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Your stack

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