CVE-2024-44337Public exploitNetwork attack vector

Application hang via zero-length definition-list parse

Published Oct 15, 2024 · Updated Nov 14, 2024

Infinite loop in gomarkdown/markdown before 0.0.0-20240729212818-a2a9c4f76ef5 allows remote attackers to hang consuming applications. In parser/block.go, paragraph treated a zero-length definition-list parse as progress and returned without advancing the input offset. Crafted Markdown containing an empty list definition triggers indefinite resource consumption when an application exposes parsing to untrusted content.

CVSS severity6.9
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite loop in gomarkdown/markdown before 0.0.0-20240729212818-a2a9c4f76ef5 allows remote attackers to hang consuming applications. In parser/block.go, paragraph treated a zero-length definition-list parse as progress and returned without advancing the input offset. Crafted Markdown containing an empty list definition triggers indefinite resource consumption when an application exposes parsing to untrusted content.

The record

CVE
CVE-2024-44337
Published
Oct 15, 2024
Updated
Nov 14, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-835, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 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?

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

6.9GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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