Bug 2460698 (CVE-2026-33594) - CVE-2026-33594 dnsdist: outgoing DoH excessive memory allocation
Summary: CVE-2026-33594 dnsdist: outgoing DoH excessive memory allocation
Keywords:
Status: NEW
Alias: CVE-2026-33594
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2460842 2460843
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-22 15:06 UTC by OSIDB Bzimport
Modified: 2026-04-24 20:19 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-04-22 15:06:08 UTC 
A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.
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