{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-73539",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-18T13:32:47.376516Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-18T13:32:51.154Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "gitea",
          "product": "Gitea",
          "vendor": "Gitea",
          "versions": [
            {
              "lessThanOrEqual": "1.27.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "https://github.com/DshtAnger"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gitea substitutes a URL derived from the markup Context field into external renderer command templates without escaping the reference path before shell-style argument splitting. A crafted Context can inject additional renderer arguments, including options that load executable filter files. On deployments using a susceptible external renderer such as pandoc, a user who can place a filter file at an accessible path can cause it to execute as the Gitea service account; the public repository markup endpoint itself can be reachable without authentication."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-14T14:37:44.243Z",
        "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "shortName": "Gitea"
      },
      "references": [
        {
          "name": "GitHub Security Advisory GHSA-579w-82gf-89m2",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2"
        },
        {
          "name": "Gitea 1.27.2 release announcement",
          "tags": [
            "release-notes"
          ],
          "url": "https://blog.gitea.com/release-of-1.27.2/"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #38885",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/38885"
        },
        {
          "name": "Fix: go-gitea/gitea pull request #38898",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/go-gitea/gitea/pull/38898"
        },
        {
          "name": "go-gitea/gitea v1.27.2 release",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.2"
        }
      ],
      "title": "Gitea external renderer argument injection and code execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
    "assignerShortName": "Gitea",
    "cveId": "CVE-2026-73539",
    "datePublished": "2026-10-14T14:37:44.243Z",
    "dateReserved": "2026-08-13T16:50:59.746Z",
    "dateUpdated": "2026-10-18T13:32:51.154Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-73539\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-18T13:32:47.376516Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-18T13:32:40.520Z\"}}], \"cna\": {\"title\": \"Gitea external renderer argument injection and code execution\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"https://github.com/DshtAnger\"}], \"affected\": [{\"vendor\": \"Gitea\", \"product\": \"Gitea\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.27.1\"}], \"packageName\": \"gitea\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2\", \"name\": \"GitHub Security Advisory GHSA-579w-82gf-89m2\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://blog.gitea.com/release-of-1.27.2/\", \"name\": \"Gitea 1.27.2 release announcement\", \"tags\": [\"release-notes\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/38885\", \"name\": \"Fix: go-gitea/gitea pull request #38885\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/go-gitea/gitea/pull/38898\", \"name\": \"Fix: go-gitea/gitea pull request #38898\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/go-gitea/gitea/releases/tag/v1.27.2\", \"name\": \"go-gitea/gitea v1.27.2 release\", \"tags\": [\"release-notes\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Gitea substitutes a URL derived from the markup Context field into external renderer command templates without escaping the reference path before shell-style argument splitting. A crafted Context can inject additional renderer arguments, including options that load executable filter files. On deployments using a susceptible external renderer such as pandoc, a user who can place a filter file at an accessible path can cause it to execute as the Gitea service account; the public repository markup endpoint itself can be reachable without authentication.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-88\", \"description\": \"CWE-88: Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"shortName\": \"Gitea\", \"dateUpdated\": \"2026-10-14T14:37:44.243Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-73539\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-18T13:32:51.154Z\", \"dateReserved\": \"2026-08-13T16:50:59.746Z\", \"assignerOrgId\": \"88ee5874-cf24-4952-aea0-31affedb7ff2\", \"datePublished\": \"2026-10-14T14:37:44.243Z\", \"assignerShortName\": \"Gitea\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}