github - ghsa-6vfc-qv3f-vr6c

ghsa-6vfc-qv3f-vr6c

Vulnerability from github

Published

2022-01-12 22:20

Modified

2022-01-19 18:25

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Summary

Uncontrolled Resource Consumption in markdown-it

Details

Impact

Special patterns with length > 50K chars can slow down parser significantly.

```js const md = require('markdown-it')();

md.render(x ${' '.repeat(150000)} x \nx); ```

Patches

Upgrade to v12.3.2+

Workarounds

No.

References

Fix + test sample: https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "markdown-it"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21670"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-10T21:50:05Z",
    "nvd_published_at": "2022-01-10T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nSpecial patterns with length \u003e 50K chars can slow down parser significantly.\n\n```js\nconst md = require(\u0027markdown-it\u0027)();\n\nmd.render(`x ${\u0027 \u0027.repeat(150000)} x  \\nx`);\n```\n\n\n### Patches\n\nUpgrade to v12.3.2+\n\n### Workarounds\n\nNo.\n\n### References\n\nFix + test sample: https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101\n",
  "id": "GHSA-6vfc-qv3f-vr6c",
  "modified": "2022-01-19T18:25:52Z",
  "published": "2022-01-12T22:20:22Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21670"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/markdown-it/markdown-it"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Uncontrolled Resource Consumption in markdown-it"
}

CVE-2022-21670 (GCVE-0-2022-21670)

Vulnerability from cvelistv5

Published

2022-01-10 20:40

Modified

2025-04-22 18:33

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-400 - Uncontrolled Resource Consumption

Summary

markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.

References

►

URL

Tags

	https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c	x_refsource_CONFIRM
	https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	markdown-it	markdown-it	Version: < 12.3.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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            ],
            "url": "https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-21670",
                "options": [
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                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:42:27.797317Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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        {
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          "versions": [
            {
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        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
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            "confidentialityImpact": "NONE",
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      ],
      "problemTypes": [
        {
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      "providerMetadata": {
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        },
        "affects": {
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                      "product_name": "markdown-it",
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                            "version_value": "\u003c 12.3.2"
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        },
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            "attackVector": "NETWORK",
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    "dateReserved": "2021-11-16T00:00:00.000Z",
    "dateUpdated": "2025-04-22T18:33:46.200Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

ghsa-6vfc-qv3f-vr6c

Vulnerability from github

Impact

Patches

Workarounds

References

CVE-2022-21670 (GCVE-0-2022-21670)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature