CVE-2026-87822

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{"bugzilla": {"description": "t-digest: t-digest: Denial of Service via NaN centroid injection during deserialization", "id": "2531002", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531002"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-502", "details": ["A flaw was found in t-digest. A remote attacker can exploit a vulnerability in the `MergingDigest.fromBytes` deserialization process by injecting specially crafted \"Not a Number\" (NaN) values. These malicious values bypass validation checks, degrading sorting performance from efficient to significantly slower. This can lead to severe processing delays during merge operations, resulting in a Denial of Service (DoS) for the affected system."], "name": "CVE-2026-87822", "package_state": [{"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "t-digest", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:offline_knowledge_portal:1", "fix_state": "Affected", "package_name": "offline-knowledge-portal/rhokp-rhel9", "product_name": "Red Hat Offline Knowledge Portal"}], "public_date": "2026-09-09T14:32:42Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-87822\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-87822\nhttps://github.com/tdunning/t-digest\nhttps://github.com/tdunning/t-digest/blob/8d5c1523c3d46925e9b3979a8d63c0b9d004ed1c/core/src/main/java/com/tdunning/math/stats/MergingDigest.java\nhttps://github.com/tdunning/t-digest/blob/8d5c1523c3d46925e9b3979a8d63c0b9d004ed1c/core/src/main/java/com/tdunning/math/stats/Sort.java\nhttps://github.com/tdunning/t-digest/issues/229\nhttps://www.vulncheck.com/advisories/t-digest-3.1-through-3.3-denial-of-service-via-nan-centroid-means-in-mergingdigest-frombytes"], "threat_severity": "Important"}

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