CVE-2026-88753

Published: Oct 15, 2026Modified: Oct 20, 2026Deferred

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

A Regular-Expression Denial of Service (ReDoS) in the Markdown2. extract_metadata() function (lib/markdown2.py) of trentm markdown2 through v2.5.5 allows attackers to cause a Denial of Service (DoS) via a crafted Markdown document.

Related CWEs

CWE-400

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (2)

https://gist.github.com/NanaSec/354b4188bbd7f4105008c7b8be49b0ba

Source: cve@mitre.org

https://gist.github.com/NanaSec/354b4188bbd7f4105008c7b8be49b0ba

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.