| Título | java-json-tools jackson-coreutils 2.0 Denial of Service |
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| Descrição | Quadratic CPU DoS and Unbounded Memory Exhaustion in JSON Pointer Parsing (TreePointer.tokensFromInput)
The JSON Pointer parser in TreePointer.tokensFromInput() has two resource exhaustion vulnerabilities that together enable denial-of-service via a single crafted input string:
Quadratic CPU consumption (CWE-405): The parser uses iterative substring() calls to split the pointer into tokens. Each substring() copies the remaining string, resulting in O(n^2) total allocation and CPU time for an input with n segments.
Unbounded memory allocation (CWE-770): Parsed tokens are accumulated into an ArrayList with no capacity limit. An input with 200,000+ segments causes unbounded memory growth leading to OutOfMemoryError.
Both vulnerabilities share the same entry point, same function, and same fix location. |
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| Fonte | ⚠️ https://github.com/java-json-tools/jackson-coreutils/issues/66 |
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| Utilizador | York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171) |
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| Submissão | 29/07/2026 09h27 (há 1 mês) |
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| Moderação | 07/09/2026 21h06 (1 month later) |
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| Estado | Aceite |
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| Entrada VulDB | 399667 [java-json-tools jackson-coreutils 2.0 JSON Pointer parser TreePointer.java TreePointer.tokensFromInput Negação de Serviço] |
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| Pontos | 20 |
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