CVE-2024-1899 - Vulnerability Details - OpenCVE

Description

An issue in the anchors subparser of Showdownjs versions <= 2.1.0 could allow a remote attacker to cause denial of service conditions.

Published: 2024-02-26

Score: 5.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Showdownjs

Showdown

unaffected

Version	Status	Constraints
`0`	affected	≤ 2.1.0

Configuration 1 [-]

cpe:2.3:a:showdownjs:showdown:*:*:*:*:*:node.js:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2024-17621	An issue in the anchors subparser of Showdownjs versions <= 2.1.0 could allow a remote attacker to cause denial of service conditions.
Github GHSA	GHSA-rmmh-p597-ppvv	Showdown vulnerable to Regular Expression Denial of Service (ReDoS) in link/anchor parsing

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00079.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.tenable.com/security/research/tra-2024-05

History

Thu, 18 Sep 2025 16:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Showdownjs Showdownjs showdown
CPEs		cpe:2.3:a:showdownjs:showdown::::::node.js::*
Vendors & Products		Showdownjs Showdownjs showdown

Subscriptions

Showdownjs Showdown

MITRE

Status: PUBLISHED

Assigner: tenable

Published: 2024-02-26T18:45:23.289Z

Updated: 2024-08-01T18:56:22.277Z

Reserved: 2024-02-26T18:20:18.142Z

Link: CVE-2024-1899

Vulnrichment

Updated: 2024-08-01T18:56:22.277Z

NVD

Status : Analyzed

Published: 2024-02-26T19:15:07.037

Modified: 2025-09-18T16:25:27.583

Link: CVE-2024-1899

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-674

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