Calibre Affected by Arbitrary Code Execution via Server-Side Template Injection in Calibre HTML Export

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-25731",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-02-06T21:02:01.147Z",
    "dateReserved": "2026-02-05T16:48:00.427Z",
    "datePublished": "2026-02-06T20:14:35.822Z",
    "state": "PUBLISHED"
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        "shortName": "GitHub_M",
        "dateUpdated": "2026-02-06T20:14:35.822Z"
      },
      "title": "Calibre Affected by Arbitrary Code Execution via Server-Side Template Injection in Calibre HTML Export",
      "descriptions": [
        {
          "lang": "en",
          "value": "calibre is an e-book manager. Prior to 9.2.0, a Server-Side Template Injection (SSTI) vulnerability in Calibre's Templite templating engine allows arbitrary code execution when a user converts an ebook using a malicious custom template file via the --template-html or --template-html-index command-line options. This vulnerability is fixed in 9.2.0."
        }
      ],
      "affected": [
        {
          "vendor": "kovidgoyal",
          "product": "calibre",
          "versions": [
            {
              "version": "< 9.2.0",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
              "cweId": "CWE-1336",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-xrh9-w7qx-3gcc",
          "name": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-xrh9-w7qx-3gcc",
          "tags": [
            "x_refsource_CONFIRM"
          ]
        },
        {
          "url": "https://github.com/kovidgoyal/calibre/commit/f0649b27512e987b95fcab2e1e0a3bcdafc23379",
          "name": "https://github.com/kovidgoyal/calibre/commit/f0649b27512e987b95fcab2e1e0a3bcdafc23379",
          "tags": [
            "x_refsource_MISC"
          ]
        }
      ],
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          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "attackVector": "LOCAL",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "REQUIRED",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH"
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    "adp": [
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          "shortName": "CISA-ADP",
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        "title": "CISA ADP Vulnrichment",
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