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Vulnerability record · CVE-2026-83745 · published 2 October 2026

CVE-2026-83745: Memory allocation with excessive size value, Improper handling of length parameter inconsistency vulnerability…

Memory allocation with excessive size value, Improper handling of length parameter inconsistency vulnerability in Apache Thrift  nodejs and D lang bindings. Both bindings' WebSocket server transports read the payload length out of the frame header and allocate that many bytes immediately, without checking that the bytes have arrived. A single ~14-byte frame therefore commits as much memory as it cares to declare -- measured at 513 MiB against the Node.js server and 2 GiB against the D transport -- and in the Node.js case the connection is left open afterwards, so the frame can simply be sent again. This issue affects Apache Thrift before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

8.7 CVSS 4.0 High CWE-130 · CWE-130CWE-789 · CWE-789 Deferred
8.7CVSS 4.0 base score
-EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
2 Oct 2026Last modified by NVD

Description

Memory allocation with excessive size value, Improper handling of length parameter inconsistency vulnerability in Apache Thrift  nodejs and D lang bindings. Both bindings' WebSocket server transports read the payload length out of the frame header and allocate that many bytes immediately, without checking that the bytes have arrived. A single ~14-byte frame therefore commits as much memory as it cares to declare -- measured at 513 MiB against the Node.js server and 2 GiB against the D transport -- and in the Node.js case the connection is left open afterwards, so the frame can simply be sent again. This issue affects Apache Thrift before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
https://lists.apache.org/thread/64y7f0b89mnq4xoqcn4h26to8kskolgc

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2025-14847MongoDB Server heap memory disclosure via compressed protocol headersMismatched length fields in Zlib-compressed protocol headers let an unauthenticated client trigger a read of uninitialized heap memory in MongoDB Ser…KEVEPSS 83%analysed

Source: NIST National Vulnerability Database (record CVE-2026-83745), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.