PT-2025-35305 · Unknown+1 · Mixmark-Io Turndown+1

Crazzyhe · Published 2025-01-01 · Updated 2025-08-30 · CVE-2025-9670

Positive Technologies (AI Summary)

CVSS v4.0

5.5

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions mixmark-io turndown versions through 7.2.1

Description A security flaw exists in mixmark-io turndown, potentially leading to inefficient regular expression complexity through manipulation of an unknown function within the src/commonmark-rules.js file. This issue can be initiated remotely, and the exploit is publicly available.

Recommendations Update mixmark-io turndown to a version newer than 7.2.1.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

CWE-1333

Related Identifiers

CVE-2025-9670

Affected Products

Debian

Mixmark-Io Turndown

References · 15

• 🔥 https://github.com/mixmark-io/turndown/issues/501#issue-3336342088 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-9670 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-9670 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-9670 · Security Note
• https://osv.dev/vulnerability/CVE-2025-9670 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-9670 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-9670 · Security Note
• https://ubuntu.com/security/CVE-2025-9670 · Vendor Advisory
• https://github.com/mixmark-io/turndown/issues/501 · Note
• https://twitter.com/CVEnew/status/1961510426425893242 · Twitter Post
• https://vuldb.com/?id.321880 · Note
• https://vuldb.com/?submit.637911 · Note
• https://twitter.com/VulmonFeeds/status/1961669146686427532 · Twitter Post
• https://t.me/CVEtracker/31279 · Telegram Post
• https://vuldb.com/?ctiid.321880 · Note