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Advisories

msgpack-java through 0.9.12 Stack Overflow via Nested Arrays

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severity
medium
date
Affecting

  • msgpack-java <= 0.9.12

CWE
  • CWE-674 Uncontrolled Recursion
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
Wayde Shi (PayPal Cyber Security Team)
Description
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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