CVE-2026-91354

CRITICAL

Summary

generated automatically from NVD data

CVE-2026-91354 affects the Outside In Clean Content SDK component of Oracle Outside In Technology in Oracle Fusion Middleware, specifically version 8.5.8. A low-privileged attacker with network access over HTTP can easily exploit it, potentially taking over Oracle Outside In Technology, and the impact may extend to additional products because of a scope change. It carries a CVSS 3.1 base score of 9.9 (CRITICAL), with high confidentiality, integrity and availability impacts.

NVD description

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Outside In Technology. While the vulnerability is in Oracle Outside In Technology, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

EPSS · FIRST.org

0.33%probability of exploitation in the next 30 days

Higher than 24% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-21, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.