CVE-2026-63772 Apache Thrift: Unauthenticated single-packet crash of Go Thrift servers via the THeader transform count
Unauthenticated attackers can crash Go Thrift servers by sending a single packet with a malicious THeader transform count, causing resource exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-63772?
CVE-2026-63772 is a high-severity denial of service vulnerability in Apache Thrift, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift go bindings.
This issue affects Apache Thrift: before 0.25.0.
Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Weakness: CWE-770
Which versions are affected by CVE-2026-63772?
1 open source package ship an affected version, including thrift.
| Package | Affected | Fixed in |
|---|---|---|
thrift Bitnami | All versions | 0.25.0 |
How do I fix CVE-2026-63772?
Upgrade thrift to 0.25.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-63772 being exploited?
There is no known exploitation of CVE-2026-63772 in the wild and no public exploit code.
Sources
Also known as AZL-106041, AZL-106500, AZL-106512, AZL-106530, AZL-106542, AZL-106650 and 6 more.