Bug 2558946 - CVE-2026-83745 thrift: thrift: Denial of Service via excessive memory allocation in WebSocket transport [fedora-all]
Summary: CVE-2026-83745 thrift: thrift: Denial of Service via excessive memory allocat...
Keywords:
Status: ASSIGNED
Alias: None
Product: Fedora
Classification: Fedora
Component: thrift
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: kkeithley
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["62ec050b-521d-4072-b45b-a...
Depends On:
Blocks: CVE-2026-83745
TreeView+ depends on / blocked
 
Reported: 2026-10-22 13:20 UTC by Vipul Nair
Modified: 2026-10-26 13:12 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Vipul Nair 2026-10-22 13:20:22 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Memory allocation with excessive size value, Improper handling of length parameter inconsistency vulnerability in Apache Thrift 
nodejs and D lang bindings.

Both bindings' WebSocket server transports read the payload length out of the frame header and allocate that many bytes immediately, without checking that the bytes have arrived. A single ~14-byte frame therefore commits as much memory as it cares to declare -- measured at 513 MiB against the Node.js server and 2 GiB against the D transport -- and in the Node.js case the connection is left open afterwards, so the frame can simply be sent again.




This issue affects Apache Thrift before 0.25.0.



Users are recommended to upgrade to version 0.25.0, which fixes the issue.


Note You need to log in before you can comment on or make changes to this bug.