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CVE-2026-83354 is an access-control vulnerability in the Core component of Oracle Coherence, as distributed with Oracle Fusion Middleware. Oracle Coherence version 15.1.1.0.0 is affected. A low-privileged attacker with network access to the affected service can exploit the issue over HTTP without user interaction, resulting in unauthorized access to critical data or all data accessible through the affected Coherence deployment. The vulnerability has a scope change, meaning compromise may significantly affect additional products that use or are accessible through Coherence.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by Oracle's September 15, 2026 Critical Patch Update for Oracle Coherence, with network attack vector, low privileges required, high confidentiality impact, and changed scope according to the supplied CVSS v3 vector.
A difficult-to-exploit, network-accessible vulnerability in the Core component of Oracle Coherence 15.1.1.0.0. A low-privileged attacker can use HTTP access to compromise Oracle Coherence and obtain unauthorized access to critical data or all data accessible to Coherence. The issue has CVSS 3.1 score 6.3 and a scope change.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.