Type Confusion in Apache Fory - CVE-2026-71558
Published: August 25, 2026
Vulnerability identifier: #VU145159
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-71558
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code or cause a denial of service.
The vulnerability exists due to heap type confusion in C++ polymorphic smart-pointer deserialization when parsing a crafted input payload. A remote attacker can send a specially crafted payload to execute arbitrary code or cause a denial of service.
Only applications using C++ polymorphic smart-pointer deserialization are affected.
Affected software
Apache Fory
How to mitigate CVE-2026-71558
Install security update from vendor's website.
Apache Fory - update to 1.5.0