Heap-based buffer overflow in Apache Thrift - CVE-2026-55971
Published: August 25, 2026
Vulnerability identifier: #VU145195
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-2026-55971
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service or execute arbitrary code.
The vulnerability exists due to heap-based buffer overflow in THeaderTransport::untransform() when processing ZLIB-compressed data. A remote attacker can send specially crafted compressed input to cause a denial of service or execute arbitrary code.
Affected software
Apache Thrift
How to mitigate CVE-2026-55971
Install security update from vendor's website.
Apache Thrift - update to 0.24.0