{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "svg-sanitizer",
          "vendor": "darylldoyle",
          "versions": [
            {
              "lessThan": "1.1.0",
              "status": "affected",
              "version": "0.5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:svg-sanitizer_project:svg-sanitizer:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.1.0",
                  "versionStartIncluding": "0.5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "AlpetGexha"
        }
      ],
      "datePublic": "2026-10-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags. Unauthenticated attackers can upload SVGs with many overlapping PHP tag openers and closers, forcing quadratic preg_replace passes that exhaust worker CPU for minutes."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "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"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-407",
              "description": "Inefficient Algorithmic Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T10:59:34.119Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-2v7c-jx29-jprp)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-2v7c-jx29-jprp"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/darylldoyle/svg-sanitizer/commit/9ba9001493f5da737759303f13bd965ebdaa778c"
        },
        {
          "name": "VulnCheck Advisory: svg-sanitizer before 1.1.0 Quadratic CPU-Exhaustion DoS via PHP-Tag Stripping Loop",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/svg-sanitizer-before-1.1.0-quadratic-cpu-exhaustion-dos-via-php-tag-stripping-loop"
        }
      ],
      "title": "svg-sanitizer before 1.1.0 Quadratic CPU-Exhaustion DoS via PHP-Tag Stripping Loop",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-117540",
    "datePublished": "2026-10-27T10:59:34.119Z",
    "dateReserved": "2026-10-27T10:33:39.046Z",
    "dateUpdated": "2026-10-27T10:59:34.119Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}