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Vulnerability · Published Oct 2, 2026 · Assigned by apache

CVE-2026-83663Apache Thrift: TFramedTransport and THeaderTransport re-enter Read once per frame that carries no payload (Go)

High 8.7

In plain English

A high-severity security flaw in Apache Thrift from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 79.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Uncontrolled Recursion vulnerability in Apache Thrift go bindings. Both Go transports satisfy a read out of a buffered frame and, when that frame yields no payload bytes, read the next frame and call `Read` again instead of looping. A peer produces such a frame for 4 bytes in `TFramedTransport` (a declared size of zero) or 18 bytes in `THeaderTransport` (a header block that fills the frame), so nothing bounds the depth. The Go stack limit is reached as a `fatal error`, which `recover()` cannot catch, so the whole process dies. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12thriftno fix listedDEBIAN-CVE-2026-83663
Debian:13thriftno fix listedDEBIAN-CVE-2026-83663
Debian:14thriftno fix listedDEBIAN-CVE-2026-83663
Ubuntu:22.04:LTSthriftno fix listedUBUNTU-CVE-2026-83663
Ubuntu:24.04:LTSthriftno fix listedUBUNTU-CVE-2026-83663
Ubuntu:26.04:LTSthriftno fix listedUBUNTU-CVE-2026-83663
Ubuntu:26.10thriftno fix listedUBUNTU-CVE-2026-83663

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache Thrift 0 – before 0.25.0

Weakness: CWE-674 · Vector: 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

References