Vulnerability · Published Oct 2, 2026 · Assigned by apache
CVE-2026-66859Apache Thrift: c_glib multiplexed processor crashes on a message it cannot route
High 8.7
In plain English
A high-severity null pointer dereference 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 25% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 75.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
NULL Pointer Dereference, Use of Uninitialized Variable vulnerability in Apache Thrift c_glib 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-2026-66859 |
| Debian:13 | thrift | no fix listed | DEBIAN-CVE-2026-66859 |
| Debian:14 | thrift | no fix listed | DEBIAN-CVE-2026-66859 |
| Ubuntu:22.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66859 |
| Ubuntu:24.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66859 |
| Ubuntu:26.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66859 |
| Ubuntu:26.10 | thrift | no fix listed | UBUNTU-CVE-2026-66859 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Thrift | 0 – before 0.25.0 |
Weakness: CWE-476, CWE-457 · 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
- https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 vendor-advisory
- https://lists.apache.org/thread/n9rogg2166hl9y4ycq5njpvnxndr8y5o vendor-advisory