Resource exhaustion in Url-Regex Project

CVE-2020-7661

all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-7661: held from 0.026 to 0.027.

EPSS over last 30 days · oldest: 0.026 · newest: 0.027 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-7661?
CVE-2020-7661 is a high-severity vulnerability in Url-Regex Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-06-04.
How severe is CVE-2020-7661?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-7661 known to be exploited?
18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.