Vulnerability · Published Oct 2, 2026 · Assigned by apache
CVE-2026-83632Apache Thrift: C++ THttpTransport grows its line buffer without bound
Critical 9.2
In plain English
A critical-severity resource allocation without limits 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 22% of all known vulnerabilities).
Severity (CVSS 4.0)9.2Critical
Exploit odds (30 days)0.3%top 77.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Allocation of resources without limits or throttling, Integer overflow or wraparound, Heap-based buffer overflow vulnerability in Apache Thrift. 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-2026-83632 |
| Debian:13 | thrift | no fix listed | DEBIAN-CVE-2026-83632 |
| Debian:14 | thrift | no fix listed | DEBIAN-CVE-2026-83632 |
| Ubuntu:22.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-83632 |
| Ubuntu:24.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-83632 |
| Ubuntu:26.04:LTS | thrift | no fix listed | UBUNTU-CVE-2026-83632 |
| Ubuntu:26.10 | thrift | no fix listed | UBUNTU-CVE-2026-83632 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Thrift | 0 – before 0.25.0 |
Weakness: CWE-770, CWE-190, CWE-122 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 vendor-advisory
- https://lists.apache.org/thread/zjv6hjmhl4tb4l4l1dk4bmc2whxh0lb4 vendor-advisory