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A denial of service vulnerability exists in the REXML module of Ruby 1.8.6 through 1.8.6-p287, 1.8.7 through 1.8.7-p72, and 1.9, where context-dependent attackers can cause excessive CPU consumption by submitting XML documents with recursively nested entities (XML entity explosion). This is due to insufficient restriction on entity expansion in the XML parser.
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What an attacker gets, and what they’ve been doing with it.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
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No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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