CVE-2026-87962: Improper Validation of Specified Quantity in Input in tdunning t-digest
t-digest versions 3.1 through 3.3 have a denial of service vulnerability in the MergingDigest.fromBytes method. This flaw arises from improper validation of length and capacity fields in serialized data, allowing crafted inputs to cause exceptions that abort the parsing thread.
AI Analysis
Technical Summary
The vulnerability in t-digest (CVE-2026-87962) affects versions 3.1 through 3.3. It involves improper validation of specified quantity fields during deserialization in the MergingDigest.fromBytes function. Attackers can supply maliciously crafted serialized digests with mismatched header fields, triggering ArrayIndexOutOfBoundsException or NegativeArraySizeException, which results in denial of service by terminating the parsing thread.
Potential Impact
Successful exploitation causes denial of service by crashing the thread responsible for parsing serialized digest data. This can disrupt applications relying on t-digest for statistical computations, potentially leading to service interruptions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented.
CVE-2026-87962: Improper Validation of Specified Quantity in Input in tdunning t-digest
Description
t-digest versions 3.1 through 3.3 have a denial of service vulnerability in the MergingDigest.fromBytes method. This flaw arises from improper validation of length and capacity fields in serialized data, allowing crafted inputs to cause exceptions that abort the parsing thread.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in t-digest (CVE-2026-87962) affects versions 3.1 through 3.3. It involves improper validation of specified quantity fields during deserialization in the MergingDigest.fromBytes function. Attackers can supply maliciously crafted serialized digests with mismatched header fields, triggering ArrayIndexOutOfBoundsException or NegativeArraySizeException, which results in denial of service by terminating the parsing thread.
Potential Impact
Successful exploitation causes denial of service by crashing the thread responsible for parsing serialized digest data. This can disrupt applications relying on t-digest for statistical computations, potentially leading to service interruptions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-09T17:35:22.800Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa28f7dacd9273b4903bb0c
Added to database: 09/10/2026, 11:07:41 UTC
Last enriched: 09/10/2026, 11:22:05 UTC
Last updated: 09/10/2026, 12:00:16 UTC
Views: 6
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