Bug 2532554 (CVE-2026-90472)
| Summary: | CVE-2026-90472 org.msgpack/msgpack-core: msgpack-java: Denial of Service via nested array deserialization | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | gmalinko, janstey, pdelbell, rstepani |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in msgpack-java. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by crafting a malicious payload with deeply nested arrays. The MessageUnpacker.unpackValue() function, responsible for deserializing arrays and maps, lacks proper depth limits, leading to a stack overflow when processing such payloads. This can exhaust the deserializing thread's stack, causing per-request deserialization failures.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-09-12 11:21:21 UTC
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