Medium
node-turndown — security advisory
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.
- Products
- node-turndown
- Affected versions
- 7.1.1-1, 7.1.1-2, 7.1.1-3, 7.2.2+~2.2.0~git20240406-2, 7.2.4+~2.2.0~git20240406-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-9670
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:52 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2025-9670
node-turndown
Fixed versions: Not specified
node-turndown
Fixed versions: Not specified
node-turndown
Fixed versions: Not specified
node-turndown
Fixed versions: Not specified
node-turndown
Fixed versions: Not specified
Complete source record
{
"id": "dabaed94931d730d4d7b093e1312729afebfa6a6d0dafcd4198a398ffc306e11",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-9670",
"method": "structured",
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"title": "UBUNTU-CVE-2025-9670",
"summary": "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.",
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"modified": "2026-10-17T12:59:38.965015688Z",
"provider": "osv",
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"references": [
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"https://www.cve.org/CVERecord?id=CVE-2025-9670",
"https://github.com/mixmark-io/turndown/issues/501",
"https://github.com/mixmark-io/turndown/issues/501#issue-3336342088",
"https://vuldb.com/?ctiid.321880",
"https://vuldb.com/?id.321880",
"https://vuldb.com/?submit.637911"
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"source_id": "core-osv",
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"published_at": "2025-08-29T19:15:00+00:00"
}