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    2 vulnerabilities found for secure_headers by github

    CVE-2026-54163 (GCVE-0-2026-54163)

    Vulnerability from nvd – Published: 2026-07-17 20:19 – Updated: 2026-07-17 20:19
    VLAI
    Title
    secure_headers: CSP directive injection via sandbox, plugin_types, and report_to when given untrusted input
    Summary
    secure_headers manages application of security headers with many safe defaults. Prior to 7.3.0, secure_headers builds the Content-Security-Policy value by stitching directives with ; separators, and build_sandbox_list_directive, build_media_type_list_directive, and build_report_to_directive interpolate caller-supplied strings without scrubbing ;, \r, or \n. When untrusted input reaches SecureHeaders.override_content_security_policy_directives or append APIs for :sandbox, :plugin_types, or :report_to, an attacker can inject a CSP directive such as script-src 'unsafe-inline' * before the legitimate script-src, enabling XSS reachability through these sinks or CSP report exfiltration. This issue is fixed in version 7.3.0.
    Severity
    4.7 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    • CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    github secure_headers Affected: < 7.3.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "secure_headers",
          "vendor": "github",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.3.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "secure_headers manages application of security headers with many safe defaults. Prior to 7.3.0, secure_headers builds the Content-Security-Policy value by stitching directives with ; separators, and build_sandbox_list_directive, build_media_type_list_directive, and build_report_to_directive interpolate caller-supplied strings without scrubbing ;, \\r, or \\n. When untrusted input reaches SecureHeaders.override_content_security_policy_directives or append APIs for :sandbox, :plugin_types, or :report_to, an attacker can inject a CSP directive such as script-src \u0027unsafe-inline\u0027 * before the legitimate script-src, enabling XSS reachability through these sinks or CSP report exfiltration. This issue is fixed in version 7.3.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-113",
              "description": "CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T20:19:18.186Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/github/secure_headers/security/advisories/GHSA-rqq5-2gf9-4w4q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/github/secure_headers/security/advisories/GHSA-rqq5-2gf9-4w4q"
        },
        {
          "name": "https://github.com/github/secure_headers/commit/286a79dea80c6a9be4ca93e0f284c923cf77e539",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/github/secure_headers/commit/286a79dea80c6a9be4ca93e0f284c923cf77e539"
        },
        {
          "name": "https://github.com/github/secure_headers/releases/tag/v7.3.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/github/secure_headers/releases/tag/v7.3.0"
        }
      ],
      "source": {
        "advisory": "GHSA-rqq5-2gf9-4w4q",
        "discovery": "UNKNOWN"
      },
      "title": "secure_headers: CSP directive injection via sandbox, plugin_types, and report_to when given untrusted input"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54163",
    "datePublished": "2026-07-17T20:19:18.186Z",
    "dateReserved": "2026-06-11T21:46:52.380Z",
    "dateUpdated": "2026-07-17T20:19:18.186Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-54163 (GCVE-0-2026-54163)

    Vulnerability from cvelistv5 – Published: 2026-07-17 20:19 – Updated: 2026-07-17 20:19
    VLAI
    Title
    secure_headers: CSP directive injection via sandbox, plugin_types, and report_to when given untrusted input
    Summary
    secure_headers manages application of security headers with many safe defaults. Prior to 7.3.0, secure_headers builds the Content-Security-Policy value by stitching directives with ; separators, and build_sandbox_list_directive, build_media_type_list_directive, and build_report_to_directive interpolate caller-supplied strings without scrubbing ;, \r, or \n. When untrusted input reaches SecureHeaders.override_content_security_policy_directives or append APIs for :sandbox, :plugin_types, or :report_to, an attacker can inject a CSP directive such as script-src 'unsafe-inline' * before the legitimate script-src, enabling XSS reachability through these sinks or CSP report exfiltration. This issue is fixed in version 7.3.0.
    Severity
    4.7 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    • CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    github secure_headers Affected: < 7.3.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "secure_headers",
          "vendor": "github",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.3.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "secure_headers manages application of security headers with many safe defaults. Prior to 7.3.0, secure_headers builds the Content-Security-Policy value by stitching directives with ; separators, and build_sandbox_list_directive, build_media_type_list_directive, and build_report_to_directive interpolate caller-supplied strings without scrubbing ;, \\r, or \\n. When untrusted input reaches SecureHeaders.override_content_security_policy_directives or append APIs for :sandbox, :plugin_types, or :report_to, an attacker can inject a CSP directive such as script-src \u0027unsafe-inline\u0027 * before the legitimate script-src, enabling XSS reachability through these sinks or CSP report exfiltration. This issue is fixed in version 7.3.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-113",
              "description": "CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T20:19:18.186Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/github/secure_headers/security/advisories/GHSA-rqq5-2gf9-4w4q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/github/secure_headers/security/advisories/GHSA-rqq5-2gf9-4w4q"
        },
        {
          "name": "https://github.com/github/secure_headers/commit/286a79dea80c6a9be4ca93e0f284c923cf77e539",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/github/secure_headers/commit/286a79dea80c6a9be4ca93e0f284c923cf77e539"
        },
        {
          "name": "https://github.com/github/secure_headers/releases/tag/v7.3.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/github/secure_headers/releases/tag/v7.3.0"
        }
      ],
      "source": {
        "advisory": "GHSA-rqq5-2gf9-4w4q",
        "discovery": "UNKNOWN"
      },
      "title": "secure_headers: CSP directive injection via sandbox, plugin_types, and report_to when given untrusted input"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54163",
    "datePublished": "2026-07-17T20:19:18.186Z",
    "dateReserved": "2026-06-11T21:46:52.380Z",
    "dateUpdated": "2026-07-17T20:19:18.186Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}