CVE-2026-46633 (GCVE-0-2026-46633)

Vulnerability from cvelistv5 – Published: 2026-07-14 21:14 – Updated: 2026-07-14 21:14
VLAI
Title
Twig: PHP code injection via `{% use %}` template name
Summary
Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
twigphp Twig Affected: < 3.26.0
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{
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        {
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          "vendor": "twigphp",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.26.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T21:14:24.916Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp"
        },
        {
          "name": "https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8"
        },
        {
          "name": "https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3"
        },
        {
          "name": "https://github.com/twigphp/Twig/releases/tag/v3.26.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/twigphp/Twig/releases/tag/v3.26.0"
        }
      ],
      "source": {
        "advisory": "GHSA-7p85-w9px-jpjp",
        "discovery": "UNKNOWN"
      },
      "title": "Twig: PHP code injection via `{% use %}` template name"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-46633",
    "datePublished": "2026-07-14T21:14:24.916Z",
    "dateReserved": "2026-05-15T20:11:54.583Z",
    "dateUpdated": "2026-07-14T21:14:24.916Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-46633",
      "date": "2026-07-15",
      "epss": "0.0052",
      "percentile": "0.40629"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46633\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-14T22:16:55.997\",\"lastModified\":\"2026-07-14T22:16:55.997\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"twigphp\",\"product\":\"Twig\",\"versions\":[{\"version\":\"\u003c 3.26.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":8.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"}]}],\"references\":[{\"url\":\"https://github.com/twigphp/Twig/commit/679447fa29083043665482ccf7d64372472621b8\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/twigphp/Twig/commit/e9ff55f6910832428e48a35b2e0748189ad49ae3\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/twigphp/Twig/releases/tag/v3.26.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/twigphp/Twig/security/advisories/GHSA-7p85-w9px-jpjp\",\"source\":\"security-advisories@github.com\"}]}}",
    "redhat_vex": {
      "current_release_date": "2026-07-15T12:29:13+00:00",
      "cve": "CVE-2026-46633",
      "id": "CVE-2026-46633",
      "initial_release_date": "2026-07-14T21:14:24.916000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "twig/twig: Twig: Arbitrary code execution via crafted template name",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46633.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.