Vulnerability in Tdunning T-Digest
CVE-2026-87962
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.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (technical-description)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-87962?
- CVE-2026-87962 is a high-severity vulnerability in Tdunning T-Digest, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-09-10.
- How severe is CVE-2026-87962?
- High severity. CVSS v3 base score is 7.5 out of 10.