{"id":"CVE-2026-71558","state":"PUBLISHED","title":"Apache Fory: Heap type confusion in C++ polymorphic smart-pointer deserialization","description":"Heap type confusion vulnerability in Apache Fory C++ deserialization.\n\nThis issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0. A crafted input payload can bypass type compatibility checks during polymorphic smart-pointer deserialization, causing an object of an incompatible type to be treated as the declared base type. This may result in undefined behavior and potentially lead to denial of service or arbitrary code execution.\n\n\nUsers are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications not using Apache Fory C++ polymorphic smart-pointer deserialization are not affected.","publishedAt":"2026-08-07T08:54:56.897Z","updatedAt":"2026-08-07T17:48:23.240Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Fory"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Fory","defaultStatus":"unaffected","versions":[{"version":"0.14.0","status":"affected","lessThan":"1.5.0","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/oywndv60jwqdv6j37t7bc1qbcc4b235r","http://www.openwall.com/lists/oss-security/2026/08/07/3"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71558.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71558","state":"PUBLISHED","datePublished":"2026-08-07T08:54:56.897Z","dateUpdated":"2026-08-07T17:48:23.240Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-08-07T07:01:06.753Z"},"containers":{"cna":{"title":"Apache Fory: Heap type confusion in C++ polymorphic smart-pointer deserialization","descriptions":[{"lang":"en","value":"Heap type confusion vulnerability in Apache Fory C++ deserialization.\n\nThis issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0. A crafted input payload can bypass type compatibility checks during polymorphic smart-pointer deserialization, causing an object of an incompatible type to be treated as the declared base type. This may result in undefined behavior and potentially lead to denial of service or arbitrary code execution.\n\n\nUsers are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications not using Apache Fory C++ polymorphic smart-pointer deserialization are not affected."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Fory","defaultStatus":"unaffected","versions":[{"version":"0.14.0","status":"affected","lessThan":"1.5.0","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread/oywndv60jwqdv6j37t7bc1qbcc4b235r","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-08-07T08:54:56.897Z"},"credits":[{"lang":"en","type":"reporter","value":"Zhixi \"Jace Sun\", independent security researcher"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/08/07/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-08-07T15:17:52.680Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-07T17:48:07.702770Z","id":"CVE-2026-71558","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-07T17:48:23.240Z"}}]}}}