CVE-2026-66858CWE-674

CVE-2026-66858

published October 2, 2026

CVSS
8.7
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.7 · NONE
CVSS v4.0
8.7 · 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
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-10-02T17:17Z
References (2)
https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 · [email protected]https://lists.apache.org/thread/6kl6g40tpl8zt3opd8fwn6bsgyddzhd5 · [email protected]
EPSS history
Timeline
  • 04 OCT 03:30Z
    EPSS moved — → 0%
    epss
  • 02 OCT 12:27Z
    Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: skip() does not apply the recursion limit (Python accelerator, PHP, Perl, Lua, Smalltalk, OCaml)
    cvelistv5