Vulnerability · Published Oct 2, 2026 · Assigned by apache
CVE-2026-66837Apache Thrift: PHP accelerator sizes a stack buffer from a wire-controlled string length
High 8.7
In plain English
A high-severity stack buffer overflow 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 29% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 71.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Stack-based Buffer Overflow, Integer Overflow or Wraparound vulnerability in Apache Thrift php 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-2026-66837 |
| Debian:13 | thrift | no fix listed | DEBIAN-CVE-2026-66837 |
| Debian:14 | thrift | no fix listed | DEBIAN-CVE-2026-66837 |
| Ubuntu:22.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66837 |
| Ubuntu:24.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66837 |
| Ubuntu:26.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-66837 |
| Ubuntu:26.10 | thrift | no fix listed | UBUNTU-CVE-2026-66837 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Thrift | 0 – before 0.25.0 |
Weakness: CWE-121, CWE-190 · 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/7o985t84551tpo55v6fsd3g42gs3zps1 vendor-advisory