CVE-2026-83119

CVE-2026-83119 is a high-severity (CVSS 8.8) vulnerability in the Internal Operations component of Oracle User Management within Oracle E-Business Suite, affecting releases 12.2.6 through 12.2.15. It is easily exploitable by a low-privileged (valid-credential) attacker with network access via HTTP to the EBS web tier, requiring no user interaction. A successful attack results in complete takeover of the Oracle User Management component, with high impact on confidentiality, integrity, and availability of its data — potentially including unauthorized account provisioning and privilege escalation within the suite. Any organization running an affected E-Business Suite 12.2 release with the Oracle User Management component exposed to users over the network is at risk. No public proof-of-concept exists, the flaw is not on the CISA KEV list, and no in-the-wild exploitation is currently known.

What to do: Apply the Oracle Critical Patch Update that remediates CVE-2026-83119 to all EBS 12.2.6-12.2.15 environments; do not delay patching even though the flaw requires authentication. In the interim, restrict HTTP access to the EBS web tier (VPN/IP allowlisting) and audit low-privilege account activity in User Management/Internal Operations for anomalous provisioning or privilege changes. Verify that no unexplained local users or responsibilities have been created after patching.