CVE-2026-87962

High

Description

t-digest versions 3.1 through 3.3 contain a denial of service vulnerability in MergingDigest.fromBytes that fails to validate length and capacity fields from serialized data. Attackers can supply crafted serialized digests with mismatched header fields to trigger ArrayIndexOutOfBoundsException or NegativeArraySizeException, aborting the parsing thread.

SeverityHigh
CVSS7.5
Exploit probability—
ProductTdunning T-digest
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-1284CWE-1284

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
tdunning t-digest3.1 ≤ v ≤ 3.3—

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