7.5

CVE-2021-21306: marked_project marked Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesGHSA-4r62-v4vq-hr96
Published 08-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21306 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in marked_project marked. EPSS estimates a 2.46% chance of exploitation in the next 30 days, higher than 84.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-02-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Marked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regular expression Denial of Service vulnerability. This vulnerability can affect anyone who runs user generated code through marked. This vulnerability is fixed in version 2.0.0.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.46%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.46% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Marked_project1 product
Markedjs1 product
Npm1 product
  • marked≥ 1.1.1, < 2.0.0

3 vendors · 3 products

References

6 links