{"id":"CVE-2025-9670","state":"PUBLISHED","title":"mixmark-io turndown commonmark-rules.js redos","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.","publishedAt":"2025-08-29T19:02:08.787Z","updatedAt":"2025-08-29T19:19:09.813Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["mixmark-io turndown"],"affected":[{"vendor":"mixmark-io","product":"turndown","versions":[{"version":"7.2.0","status":"affected"},{"version":"7.2.1","status":"affected"}]}],"references":["https://vuldb.com/?id.321880","https://vuldb.com/?ctiid.321880","https://vuldb.com/?submit.637911","https://github.com/mixmark-io/turndown/issues/501","https://github.com/mixmark-io/turndown/issues/501#issue-3336342088"],"weaknesses":["CWE-1333","CWE-400"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/9xxx/CVE-2025-9670.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-9670","state":"PUBLISHED","datePublished":"2025-08-29T19:02:08.787Z","dateUpdated":"2025-08-29T19:19:09.813Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2025-08-29T10:03:52.218Z"},"containers":{"cna":{"title":"mixmark-io turndown commonmark-rules.js redos","descriptions":[{"lang":"en","value":"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."},{"lang":"de","value":"Eine Schwachstelle wurde in mixmark-io turndown bis 7.2.1 gefunden. Hierbei betrifft es unbekannten Programmcode der Datei src/commonmark-rules.js. Mittels Manipulieren mit unbekannten Daten kann eine inefficient regular expression complexity-Schwachstelle ausgenutzt werden. Der Angriff lässt sich über das Netzwerk starten. Der Exploit steht zur öffentlichen Verfügung."}],"affected":[{"vendor":"mixmark-io","product":"turndown","versions":[{"version":"7.2.0","status":"affected"},{"version":"7.2.1","status":"affected"}]}],"references":[{"url":"https://vuldb.com/?id.321880","name":"VDB-321880 | mixmark-io turndown commonmark-rules.js redos","tags":["vdb-entry"]},{"url":"https://vuldb.com/?ctiid.321880","name":"VDB-321880 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.637911","name":"Submit #637911 | turndown npm v7.2.1 Inefficient Regular Expression Complexity","tags":["third-party-advisory"]},{"url":"https://github.com/mixmark-io/turndown/issues/501","tags":["issue-tracking"]},{"url":"https://github.com/mixmark-io/turndown/issues/501#issue-3336342088","tags":["exploit","issue-tracking"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","type":"CWE","lang":"en","description":"Inefficient Regular Expression Complexity"}]},{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"Resource Consumption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2025-08-29T19:02:08.787Z"},"timeline":[{"time":"2025-08-29T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2025-08-29T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2025-08-29T12:10:55.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"CrazzyHe (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-08-29T19:18:59.767313Z","id":"CVE-2025-9670","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-08-29T19:19:09.813Z"}}]}}}