CVE-2026-55970: Apache Thrift: C++ heap out-of-bounds read in THeaderTransport::readHeaderFormat()

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-08-07

EPSS Score

0.48% (percentile: 40.4%)

Affected Products (1)

Other

• 21398-17084

Revision History

• 2026-08-07: Information published.