OCTOBER 7, 2026
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Case File

CVE-2026-66858

HIGH · CVSS 8.7 EPSS 0.26%

Source: NVD + CISA KEV + EPSS · Published 2026-10-02 · Last synced 2026-10-07

CyberRota Analysis

AI-Generated

Several Apache Thrift bindings, including the Python C++ accelerator, PHP library, and others, are vulnerable due to a failure to enforce the binding's recursion limit, potentially leading to stack exhaustion from deeply nested messages. This high-severity vulnerability can result in application crashes and service disruptions. Organizations using affected versions should prioritize upgrading to version 0.25.0 to mitigate these risks.

CVE
CVE-2026-66858
Severity
HIGH
CVSS
8.7
EPSS
0.26%
Apache

Original NVD Description

The protocol skip routine in several Apache Thrift bindings did not apply the binding's recursion limit, so a message that nests unknown fields deeply enough can exhaust the stack. Affected: the Python C++ accelerator (the pure-Python protocols are not affected), the PHP library and its thrift_protocol extension, and the Perl, Lua, Smalltalk and OCaml libraries. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.