CVE-2024-43405Public exploit

Code execution via newline-confused signature verification

Published Sep 4, 2024 · Updated Sep 4, 2024

OS command injection in ProjectDiscovery Nuclei 3.0.0 through 3.3.1 allows attackers to execute code through a malicious custom template. The signer package verifies the benign prefix before the final digest while the YAML parser accepts carriage-return-delimited content after an earlier valid signature. Exploitation requires a user or embedding platform to enable code templates and run a template from an unverified source; code templates are disabled by default.

CVSS severity7.4
High
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ProjectDiscovery Nuclei 3.0.0 through 3.3.1 allows attackers to execute code through a malicious custom template. The signer package verifies the benign prefix before the final digest while the YAML parser accepts carriage-return-delimited content after an earlier valid signature. Exploitation requires a user or embedding platform to enable code templates and run a template from an unverified source; code templates are disabled by default.

The record

CVE
CVE-2024-43405
Published
Sep 4, 2024
Updated
Sep 4, 2024
Vendor
ProjectDiscovery
Product
Nuclei
Classifications
CWE-78, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=>= 3.0.0, < 3.3.2
  2. Affected versionversion=3.0.0 <3.3.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ProjectDiscovery · Nucleiversion=>= 3.0.0, < 3.3.2; version=3.0.0 <3.3.2

Published CVSS scores

7.4GitHub, Inc.CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
7.8NISTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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.

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1204.002User Execution: Malicious File

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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