提出 #908323: java-json-tools jackson-coreutils 2.0 SSRF + BigDecimal Amplification Remote DoS情報

タイトルjava-json-tools jackson-coreutils 2.0 SSRF + BigDecimal Amplification Remote DoS
説明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.
ソース⚠️ https://github.com/java-json-tools/jackson-coreutils/issues/64
ユーザー
 York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171)
送信2026年07月29日 06:48 (1 月 ago)
モデレーション2026年09月07日 07:45 (1 month later)
ステータス承諾済み
VulDBエントリ399511 [java-json-tools jackson-coreutils 2.0 URL Validation JsonLoader.java JsonLoader.fromURL 特権昇格]
ポイント20

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