Bug 2532554 (CVE-2026-90472) - CVE-2026-90472 org.msgpack/msgpack-core: msgpack-java: Denial of Service via nested array deserialization
Summary: CVE-2026-90472 org.msgpack/msgpack-core: msgpack-java: Denial of Service via ...
Keywords:
Status: NEW
Alias: CVE-2026-90472
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-12 11:21 UTC by OSIDB Bzimport
Modified: 2026-11-04 17:29 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-12 11:21:21 UTC 
msgpack-java through 0.9.12 contains a stack overflow vulnerability in MessageUnpacker.unpackValue() that recursively deserializes arrays and maps without nesting depth limits. Attackers can craft payloads with deeply nested arrays to exhaust the deserializing thread's stack and trigger StackOverflowError, causing per-request deserialization failures.
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