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CVE-2025-9670

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d7c5ed8d3e340978ec887b0244e3cf0d8efff7394bf07a39d69358306ea35a44
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-400","description":"Resource Consumption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-1333","description":"Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"turndown","vendor":"mixmark-io","versions":[{"status":"affected","version":"7.2.0"},{"status":"affected","version":"7.2.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-400","description":"Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-1333","description":"Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["issue-tracking"],"url":"https://github.com/mixmark-io/turndown/issues/501"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/references/3
{"tags":["exploit","issue-tracking"],"url":"https://github.com/mixmark-io/turndown/issues/501#issue-3336342088"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/references/4
{"name":"VDB-321880 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.321880"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/references/1
{"name":"VDB-321880 | mixmark-io turndown commonmark-rules.js redos","tags":["vdb-entry"],"url":"https://vuldb.com/?id.321880"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/references/0
{"name":"Submit #637911 | turndown npm v7.2.1 Inefficient Regular Expression Complexity","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.637911"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:76a8c02113010a65843eba23a4a6a3d778579e13ad40420258ffd7d61ef16aac · sha256:d80620ce36a909b5… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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