Bug 2498418 - CVE-2026-58250 golang-github-nats-io-streaming-server: NATS Server: Denial of Service via repeated leafnode INFO messages during pre-authentication [fedora-all]
Summary: CVE-2026-58250 golang-github-nats-io-streaming-server: NATS Server: Denial of...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: golang-github-nats-io-streaming-server
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Orphan Owner
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["162b5e6d-4c93-4d35-9fb3-7...
Depends On:
Blocks: CVE-2026-58250
TreeView+ depends on / blocked
 
Reported: 2026-07-09 07:05 UTC by Jeremy Choi
Modified: 2026-07-09 07:05 UTC (History)
2 users (show)

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

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Description Jeremy Choi 2026-07-09 07:05:00 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.

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.12.8 and 2.11.17, an unauthenticated peer with network access to a leafnode listener with compression enabled could crash the server during the pre-authentication leafnode handshake by sending repeated leafnode INFO protocol messages before authentication and account setup completed. This issue is fixed in versions 2.12.8 and 2.11.17.
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