CVE-2024-3187Network attack vector

Service crash via uncleared freed JST values

Published Oct 17, 2024 · Updated Oct 17, 2024

Memory corruption in EmbedThis GoAhead 6.0.0 and earlier allows remote authenticated users to crash the server via malicious JST files. During JST template parsing, freed values remain non-null, allowing later parser operations to reuse or free the stale pointers. Exploitation requires JavaScript template support at build time and privileges to modify interpreted JST content; code execution is highly context-dependent.

CVSS severity5.9
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in EmbedThis GoAhead 6.0.0 and earlier allows remote authenticated users to crash the server via malicious JST files. During JST template parsing, freed values remain non-null, allowing later parser operations to reuse or free the stale pointers. Exploitation requires JavaScript template support at build time and privileges to modify interpreted JST content; code execution is highly context-dependent.

The record

CVE
CVE-2024-3187
Published
Oct 17, 2024
Updated
Oct 17, 2024
Vendor
EmbedThis
Product
GoAhead
Classifications
CWE-415, CWE-416
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2024Record 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=0 <=6.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

EmbedThis · GoAheadversion=0 <=6.0.0

Published CVSS scores

5.9Nozomi Networks Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-415Double Free
CWE-416Use After Free

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

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Your stack

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