{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-102941",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-26T17:28:56.649619Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-26T17:37:11.962Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "markdown",
          "vendor": "gomarkdown",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.0.0-20260724235538-61af6e1e6971"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The package github.com/gomarkdown/markdown is a Go library for parsing Markdown text and rendering as HTML. Prior to 0.0.0-20260724235538-61af6e1e6971, parser.IsSafeURL in parser/parser.go slices url[:nPath] before the len(url) \u003e= nPath guard. A short destination causes a slice-bounds panic when the loop reaches a relative-path prefix for which len(url) \u003c nPath and cap(url) \u003c nPath. The one-byte destination / is an explicit non-panic counterexample because it matches the first valid path and returns before a longer prefix is sliced. Demonstrated panic cases include empty, ., and .. destinations under those conditions. The panic is reachable when markdown.ToHTML renders untrusted Markdown with html.Safelink enabled, including an empty link destination, and is also reachable by callers that pass a short attacker-controlled URL directly to the exported parser.IsSafeURL function. An uncaught panic can terminate the calling process and cause denial of service. This issue is fixed in 0.0.0-20260724235538-61af6e1e6971."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-16T15:38:18.086Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-cv23-7vc5-jfh7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-cv23-7vc5-jfh7"
        },
        {
          "name": "https://github.com/gomarkdown/markdown/commit/61af6e1e69710c5ca13cfbaaaa1bc11bc763a8a9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gomarkdown/markdown/commit/61af6e1e69710c5ca13cfbaaaa1bc11bc763a8a9"
        }
      ],
      "source": {
        "advisory": "GHSA-cv23-7vc5-jfh7",
        "discovery": "UNKNOWN"
      },
      "title": "gomarkdown/markdown IsSafeURL panics on short URLs"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-102941",
    "datePublished": "2026-10-16T15:38:18.086Z",
    "dateReserved": "2026-09-29T20:24:43.341Z",
    "dateUpdated": "2026-10-26T17:37:11.962Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-102941\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-26T17:28:56.649619Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-26T17:36:07.163Z\"}}], \"cna\": {\"title\": \"gomarkdown/markdown IsSafeURL panics on short URLs\", \"source\": {\"advisory\": \"GHSA-cv23-7vc5-jfh7\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"gomarkdown\", \"product\": \"markdown\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 0.0.0-20260724235538-61af6e1e6971\"}]}], \"references\": [{\"url\": \"https://github.com/gomarkdown/markdown/security/advisories/GHSA-cv23-7vc5-jfh7\", \"name\": \"https://github.com/gomarkdown/markdown/security/advisories/GHSA-cv23-7vc5-jfh7\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/gomarkdown/markdown/commit/61af6e1e69710c5ca13cfbaaaa1bc11bc763a8a9\", \"name\": \"https://github.com/gomarkdown/markdown/commit/61af6e1e69710c5ca13cfbaaaa1bc11bc763a8a9\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The package github.com/gomarkdown/markdown is a Go library for parsing Markdown text and rendering as HTML. Prior to 0.0.0-20260724235538-61af6e1e6971, parser.IsSafeURL in parser/parser.go slices url[:nPath] before the len(url) \u003e= nPath guard. A short destination causes a slice-bounds panic when the loop reaches a relative-path prefix for which len(url) \u003c nPath and cap(url) \u003c nPath. The one-byte destination / is an explicit non-panic counterexample because it matches the first valid path and returns before a longer prefix is sliced. Demonstrated panic cases include empty, ., and .. destinations under those conditions. The panic is reachable when markdown.ToHTML renders untrusted Markdown with html.Safelink enabled, including an empty link destination, and is also reachable by callers that pass a short attacker-controlled URL directly to the exported parser.IsSafeURL function. An uncaught panic can terminate the calling process and cause denial of service. This issue is fixed in 0.0.0-20260724235538-61af6e1e6971.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-16T15:38:18.086Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-102941\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-26T17:37:11.962Z\", \"dateReserved\": \"2026-09-29T20:24:43.341Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-10-16T15:38:18.086Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}