Description
A security flaw has been discovered in mixmark-io turndown up to 7.2.1. This affects an unknown function of the file src/commonmark-rules.js. Performing manipulation results in inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited.
References (5)
Scores
CVSS v3
5.3
EPSS
0.0006
EPSS Percentile
17.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
CWE-400
Status
published
Products (2)
mixmark-io/turndown
7.2.0
mixmark-io/turndown
7.2.1
Published
Aug 29, 2025
Tracked Since
Feb 18, 2026