Vulnerability · Published Oct 2, 2026 · Assigned by apache
CVE-2026-94654Apache Thrift: Python `TNonblockingServer` busy-loops and stops selecting all fds after an 8192-byte-boundary frame
High 8.2
In plain English
A high-severity infinite loop 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 27% of all known vulnerabilities).
Severity (CVSS 4.0)8.2High
Exploit odds (30 days)0.3%top 73.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Loop with unreachable exit condition ('infinite loop') vulnerability in Apache Thrift python bindings. 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
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | thrift | no fix listed | DEBIAN-CVE-2026-94654 |
| Debian:13 | thrift | no fix listed | DEBIAN-CVE-2026-94654 |
| Debian:14 | thrift | no fix listed | DEBIAN-CVE-2026-94654 |
| Ubuntu:22.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-94654 |
| Ubuntu:24.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-94654 |
| Ubuntu:26.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-94654 |
| Ubuntu:26.10 | thrift | no fix listed | UBUNTU-CVE-2026-94654 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Thrift | 0 – before 0.25.0 |
Weakness: CWE-835 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References
- https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 vendor-advisory
- https://lists.apache.org/thread/kx3xdttoypl8j4dcxmqbq9dwy1w0kr7j vendor-advisory