Deserialization of Untrusted Data in Apache Fory - CVE-2026-71559
Published: August 25, 2026
Vulnerability identifier: #VU145158
CSH Severity: Medium
CVSS v4: 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]
CVE-ID: CVE-2026-71559
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to deserialization of untrusted data in the Go meta-string decoder when processing crafted data containing malformed type metadata. A remote attacker can supply crafted data to cause a denial of service.
Only the Go implementation is affected.
Affected software
Apache Fory
How to mitigate CVE-2026-71559
Install security update from vendor's website.
Apache Fory - update to 1.5.0