CVE-2026-123274

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{"affected": [{"affectedData": [{"collectionURL": "https://github.com", "defaultStatus": "unaffected", "packageName": "apache/datasketches-cpp", "packageURL": "pkg:github/apache/datasketches-cpp", "product": "Apache DataSketches C++", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "5.3.0", "status": "affected", "version": "1.0.0-incubating", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write vulnerability in Apache DataSketches C++. An\n application that deserializes a KLL sketch from an untrusted source\n can have heap memory corrupted by a crafted sketch, because the\n serialized level boundaries were not validated.\n\n This issue affects Apache DataSketches C++: 2.0.0 through 5.3.0.\n\n Users are recommended to upgrade to version 5.3.1, which fixes the\n issue."}], "id": "CVE-2026-123274", "lastModified": "2026-11-13T11:17:16.127", "metrics": {}, "published": "2026-11-13T11:17:16.127", "references": [{"source": "security@apache.org", "url": "https://github.com/apache/datasketches-cpp/commit/bb86d439db494e3d362e54cc4f83481893974335"}, {"source": "security@apache.org", "url": "https://github.com/apache/datasketches-cpp/pull/568"}, {"source": "security@apache.org", "url": "https://github.com/apache/datasketches-cpp/releases/tag/5.3.1"}, {"source": "security@apache.org", "url": "https://lists.apache.org/thread/t4rngyg9cbv1b42f1d0crgpgtpby0594"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/11/13/1"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security@apache.org", "type": "Primary"}]}

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