Oracle EBS CVE-2026-101767: Unauthenticated SQLi to RCE
Attackers are already probing this unauthenticated SQL-injection-to-RCE flaw a week after the patch, and EBS holds finance, HR and payroll data, so any EBS web tier reachable from the internet needs the October CPU or the servlet blocked today.
Must act: Organizations running Oracle E-Business Suite 12.2.3 through 12.2.15 without the October 2026 Critical Patch Update, first those whose EBS web tier (OA_HTML) is reachable from the internet or from partner and supplier networks.
Can relax: Teams that have applied the October 2026 CPU, and organizations that do not run Oracle EBS; Oracle Fusion Cloud applications are a different product and are not listed for this CVE.
- Find every EBS instance and its release: SELECT release_name FROM apps.fnd_product_groups; and note which web tiers are reachable from the internet or partner networks.
- Apply the October 2026 Critical Patch Update for E-Business Suite, using the patch list in My Oracle Support note KA923, starting with internet-facing instances.
- Until patched, remove /OA_HTML/AppsTCFServer from the EBS URL firewall allowlist; Horizon3 notes the default URL firewall allows it.