What is CVE-2026-41680?

CVE-2026-41680 is a high-severity vulnerability in Markedjs Marked, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-24.

How severe is CVE-2026-41680?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Markedjs Marked

CVE-2026-41680

Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service (DoS) vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline (\x09\x0b\n)—an unauthen…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.001 (26.3th percentile) — read the EPSS interpretation.

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.

Affected products

Markedjs Marked — versions >= 18.0.0, < 18.0.2
Marked_project Marked

Weakness classification (CWE)

References

https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7 (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41680?: CVE-2026-41680 is a high-severity vulnerability in Markedjs Marked, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-24.
How severe is CVE-2026-41680?: High severity. CVSS v3 base score is 7.5 out of 10.