| Título | java-json-tools jackson-coreutils 2.0 SSRF + BigDecimal Amplification Remote DoS |
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| Descripción | SSRF + BigDecimal Amplification Remote DoS Chain via fromURL() and WRITE_BIGDECIMAL_AS_PLAIN
The combination of JsonLoader.fromURL() (which performs no URL validation) and the default WRITE_BIGDECIMAL_AS_PLAIN configuration in JacksonUtils.newMapper() creates a remote denial-of-service chain. An attacker-controlled URL can serve a tiny JSON payload (e.g., {"x": 1e2000000000}) that expands to ~2GB in memory when serialized via BigDecimal.toPlainString(), causing OutOfMemoryError. |
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| Fuente | ⚠️ https://github.com/java-json-tools/jackson-coreutils/issues/64 |
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| Usuario | York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171) |
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| Sumisión | 2026-07-29 06:48 (hace 1 mes) |
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| Moderación | 2026-09-07 07:45 (1 month later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 399511 [java-json-tools jackson-coreutils 2.0 URL Validation JsonLoader.java JsonLoader.fromURL escalada de privilegios] |
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| Puntos | 20 |
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