Vulnerability-Lookup

CNVD-2026-26336

Vulnerability from cnvd - Published: 2026-07-01

Title

Apple Safari WebKit堆栈溢出漏洞

Description

Apple Safari是一款由Apple开发的跨平台网页浏览器产品，主要提供网页内容渲染和浏览功能。 Apple Safari存在堆栈溢出漏洞，该漏洞源于未能正确验证输入数据，攻击者可利用该漏洞通过处理恶意制作的网页内容导致Safari意外崩溃。

Severity

高

Patch Name

Apple Safari WebKit堆栈溢出漏洞的补丁

Patch Description

Apple Safari是一款由Apple开发的跨平台网页浏览器产品，主要提供网页内容渲染和浏览功能。 Apple Safari存在堆栈溢出漏洞，该漏洞源于未能正确验证输入数据，攻击者可利用该漏洞通过处理恶意制作的网页内容导致Safari意外崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://support.apple.com/en-us/127594

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-43718

Impacted products

Name
['Apple Safari <26.5.2', 'Apple iPadOS\u200c <26.5.2', 'Apple iPhone OS <26.5.2', 'Apple MacOs <26.5.2']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-43718",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-43718"
    }
  },
  "description": "Apple Safari\u662f\u4e00\u6b3e\u7531Apple\u5f00\u53d1\u7684\u8de8\u5e73\u53f0\u7f51\u9875\u6d4f\u89c8\u5668\u4ea7\u54c1\uff0c\u4e3b\u8981\u63d0\u4f9b\u7f51\u9875\u5185\u5bb9\u6e32\u67d3\u548c\u6d4f\u89c8\u529f\u80fd\u3002\n\nApple Safari\u5b58\u5728\u5806\u6808\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u6570\u636e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u5904\u7406\u6076\u610f\u5236\u4f5c\u7684\u7f51\u9875\u5185\u5bb9\u5bfc\u81f4Safari\u610f\u5916\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://support.apple.com/en-us/127594",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-26336",
  "openTime": "2026-07-01",
  "patchDescription": "Apple Safari\u662f\u4e00\u6b3e\u7531Apple\u5f00\u53d1\u7684\u8de8\u5e73\u53f0\u7f51\u9875\u6d4f\u89c8\u5668\u4ea7\u54c1\uff0c\u4e3b\u8981\u63d0\u4f9b\u7f51\u9875\u5185\u5bb9\u6e32\u67d3\u548c\u6d4f\u89c8\u529f\u80fd\u3002\r\n\r\nApple Safari\u5b58\u5728\u5806\u6808\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u6570\u636e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u5904\u7406\u6076\u610f\u5236\u4f5c\u7684\u7f51\u9875\u5185\u5bb9\u5bfc\u81f4Safari\u610f\u5916\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Apple Safari WebKit\u5806\u6808\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Apple Safari \u003c26.5.2",
      "Apple iPadOS\u200c \u003c26.5.2",
      "Apple iPhone OS \u003c26.5.2",
      "Apple MacOs \u003c26.5.2"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-43718",
  "serverity": "\u9ad8",
  "submitTime": "2026-06-30",
  "title": "Apple Safari WebKit\u5806\u6808\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2026-43718 (GCVE-0-2026-43718)

Vulnerability from cvelistv5 – Published: 2026-06-29 19:42 – Updated: 2026-07-27 20:12

Summary

A stack overflow was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-29 21:18 UTC

CWE

Processing maliciously crafted web content may lead to an unexpected Safari crash
CWE-121 - Stack-based Buffer Overflow

Assigner

apple mitre root

References

6 references

URL	Tags
https://support.apple.com/en-us/127594
https://support.apple.com/en-us/127595
https://support.apple.com/en-us/127685
https://support.apple.com/en-us/128068
https://support.apple.com/en-us/128069
https://support.apple.com/en-us/128070

Impacted products

6 products

Vendor	Product	Version
Apple	Safari	Affected: 0 , < 26.5.2 (custom)
Apple	iOS and iPadOS	Affected: 0 , < 26.5.2 (custom)
Apple	macOS	Affected: 0 , < 26.5.2 (custom)
Apple	tvOS	Affected: 0 , < 26.6 (custom)
Apple	visionOS	Affected: 0 , < 26.6 (custom)
Apple	watchOS	Affected: 0 , < 26.6 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-43718",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-29T21:18:35.946454Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-121",
                "description": "CWE-121 Stack-based Buffer Overflow",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-29T21:18:38.968Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Safari",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.5.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
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              "lessThan": "26.5.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.5.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "tvOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "visionOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "watchOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A stack overflow was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Processing maliciously crafted web content may lead to an unexpected Safari crash",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-27T20:12:24.921Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/127594"
        },
        {
          "url": "https://support.apple.com/en-us/127595"
        },
        {
          "url": "https://support.apple.com/en-us/127685"
        },
        {
          "url": "https://support.apple.com/en-us/128068"
        },
        {
          "url": "https://support.apple.com/en-us/128069"
        },
        {
          "url": "https://support.apple.com/en-us/128070"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2026-43718",
    "datePublished": "2026-06-29T19:42:46.503Z",
    "dateReserved": "2026-05-01T22:46:21.645Z",
    "dateUpdated": "2026-07-27T20:12:24.921Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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