CVE-2026-45618Public exploitNetwork attack vector

Remote code execution via inherited filter lookup

Published Aug 11, 2026 · Updated Aug 11, 2026

Code injection in Harttle LiquidJS before 10.26.0 allows remote attackers to execute arbitrary code through crafted templates. Filter and tag registries use ordinary JavaScript objects, so template-controlled names resolve inherited Object.prototype members; invoking valueOf returns the filter receiver and exposes a chain to Function and child_process. Exploitation requires an application to render attacker-controlled templates, and resulting code runs with the hosting Node.js process privileges.

CVSS severity10.0
Critical
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Harttle LiquidJS before 10.26.0 allows remote attackers to execute arbitrary code through crafted templates. Filter and tag registries use ordinary JavaScript objects, so template-controlled names resolve inherited Object.prototype members; invoking valueOf returns the filter receiver and exposes a chain to Function and child_process. Exploitation requires an application to render attacker-controlled templates, and resulting code runs with the hosting Node.js process privileges.

The record

CVE
CVE-2026-45618
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
LiquidJS
Product
LiquidJS
Classifications
CWE-94, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 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?

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

  1. Affected versionversion=< 10.26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LiquidJS · LiquidJSversion=< 10.26.0

Published CVSS scores

10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

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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