CVE-2025-9670
mixmark-io turndown commonmark-rules.js redos
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 29, 2025
- Updated
- Aug 29, 2025
- Reserved
- Aug 29, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
turndownmixmark-io |
|
References
- VDB-321880 | mixmark-io turndown commonmark-rules.js redosvdb-entry
- VDB-321880 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #637911 | turndown npm v7.2.1 Inefficient Regular Expression Complexitythird-party-advisory
- https://github.com/mixmark-io/turndown/issues/501issue-tracking
- https://github.com/mixmark-io/turndown/issues/501#issue-3336342088exploitissue-tracking
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