CVE-2026-66081 Apache Thrift: c_glib read_message_begin leaves output parameters unset for non-versioned messages
An attacker can cause a denial of service in applications using Apache Thrift c_glib bindings by sending non-versioned messages that trigger uninitialized pointer access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-66081?
CVE-2026-66081 is a high-severity 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
Access of Uninitialized Pointer 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.
Weakness: CWE-824
Which versions are affected by CVE-2026-66081?
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-2026-66081?
Upgrade thrift to 0.25.0 or later.
Is CVE-2026-66081 being exploited?
There is no known exploitation of CVE-2026-66081 in the wild and no public exploit code.
Sources
Also known as AZL-106557, BIT-thrift-2026-66081, DEBIAN-CVE-2026-66081, ECHO-e487-258c-3bbb, GHSA-v446-56hp-jpw2, MINI-599f-wmhc-f27h and 1 more.