CVE-2026-87822
t-digest versions 3.1 through 3.3 fail to validate centroid means during deserialization in MergingDigest.fromBytes, allowing attackers to i
CVSS
7.5
High
EPSS
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KEV
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Exploit Today
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0-100
Published: Sep 9, 2026 · Last modified: Sep 9, 2026 · CWE-407
Not enough EPSS history yet.
t-digest versions 3.1 through 3.3 fail to validate centroid means during deserialization in MergingDigest.fromBytes, allowing attackers to inject NaN values that bypass validation checks. Attackers can craft malicious serialized digests containing NaN centroids that degrade sorting performance from O(n log n) to O(n squared), causing severe processing delays during merge operations.
- github.comhttps://github.com/tdunning/t-digest
- github.comhttps://github.com/tdunning/t-digest/blob/8d5c1523c3d46925e9b3979a8d63c0b9d004ed1c/core/src/main/java/com/tdunning/math/stats/MergingDigest.java
- github.comhttps://github.com/tdunning/t-digest/blob/8d5c1523c3d46925e9b3979a8d63c0b9d004ed1c/core/src/main/java/com/tdunning/math/stats/Sort.java
- github.comhttps://github.com/tdunning/t-digest/issues/229
- www.vulncheck.comhttps://www.vulncheck.com/advisories/t-digest-3.1-through-3.3-denial-of-service-via-nan-centroid-means-in-mergingdigest-frombytes
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2024-583827.5 HIG—
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