CVE-2026-62443 Overview
CVE-2026-62443 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in the Oracle Contracts Integration product of Oracle E-Business Suite, within the Internal Operations component. The flaw affects supported versions 12.2.3 through 12.2.15. An unauthenticated attacker with network access via HTTP can exploit the vulnerability when an authenticated user is tricked into interacting with attacker-controlled content. Successful exploitation permits unauthorized creation, deletion, or modification of Oracle Contracts Integration data and can cause a partial denial of service.
Critical Impact
Successful attacks allow unauthorized write access to critical Oracle Contracts Integration data and can degrade service availability. The vulnerability requires human interaction but no authentication.
Affected Products
- Oracle E-Business Suite — Oracle Contracts Integration versions 12.2.3 through 12.2.15
- Component: Internal Operations
- Attack surface: HTTP-accessible deployments
Discovery Timeline
- 2026-07-21 - CVE-2026-62443 published to NVD
- 2026-07-22 - Last updated in NVD database
- July 2026 - Addressed in Oracle Security Alert July 2026
Technical Details for CVE-2026-62443
Vulnerability Analysis
The vulnerability is a Cross-Site Request Forgery weakness classified under [CWE-352]. Oracle Contracts Integration accepts state-changing HTTP requests without adequately validating that requests originate from a legitimate, intended user session. When an authenticated Oracle E-Business Suite user visits a malicious page or clicks a crafted link, the browser submits authenticated requests to the vulnerable endpoint. The application processes these requests as if they were intentional, resulting in unauthorized data changes.
The impact profile focuses on integrity and availability. The CVSS vector indicates no confidentiality impact but high integrity impact, meaning attackers can modify records without necessarily reading them. Availability impact is limited to partial denial of service scoped to Oracle Contracts Integration functionality.
Root Cause
The root cause is missing or insufficient anti-CSRF protections on state-changing endpoints in the Internal Operations component. Adequate defenses such as synchronizer tokens, SameSite cookie enforcement, or origin/referer validation are absent or incorrectly applied for the affected operations.
Attack Vector
Exploitation requires an authenticated Oracle E-Business Suite user to interact with attacker-supplied content, such as visiting a malicious website or clicking a link in a phishing email. The attacker's page issues cross-origin HTTP requests that reuse the victim's active session cookies to invoke privileged operations in Oracle Contracts Integration. No credentials or prior access to the target environment are required by the attacker.
See the Oracle Security Alert July 2026 for the vendor's technical description and patch details.
Detection Methods for CVE-2026-62443
Indicators of Compromise
- Unexpected creation, modification, or deletion events in Oracle Contracts Integration audit logs tied to legitimate user sessions but originating from unusual referrers.
- HTTP requests to Oracle E-Business Suite endpoints with Origin or Referer headers pointing to external, untrusted domains.
- Session activity in Oracle Contracts Integration that coincides with user browsing of unrelated third-party sites.
Detection Strategies
- Inspect web server and application logs for state-changing POST or GET requests to Oracle Contracts Integration URLs lacking valid anti-CSRF tokens.
- Correlate authenticated user sessions with off-hours or anomalous data modifications within the Internal Operations component.
- Deploy a Web Application Firewall (WAF) rule set that flags cross-origin requests to Oracle E-Business Suite endpoints.
Monitoring Recommendations
- Forward Oracle E-Business Suite access and audit logs to a centralized SIEM for correlation and long-term retention.
- Alert on spikes in write operations against Oracle Contracts Integration tables originating from a single user session.
- Monitor endpoint telemetry on user workstations for phishing links and suspicious browser navigation preceding EBS activity.
How to Mitigate CVE-2026-62443
Immediate Actions Required
- Apply the fixes provided in the Oracle Security Alert July 2026 Critical Patch Update to all Oracle E-Business Suite deployments running versions 12.2.3 through 12.2.15.
- Restrict network exposure of Oracle E-Business Suite to trusted networks and VPN-only access where feasible.
- Enforce short session timeouts for Oracle E-Business Suite users to shrink the CSRF exploitation window.
Patch Information
Oracle released patches addressing CVE-2026-62443 as part of the July 2026 Critical Patch Update. Administrators must download and apply the corresponding Oracle Contracts Integration patch for their specific version between 12.2.3 and 12.2.15. Refer to the Oracle Security Alert July 2026 for patch identifiers and installation prerequisites.
Workarounds
- Configure session cookies with the SameSite=Strict or SameSite=Lax attribute at the reverse proxy or load balancer where the application does not set it.
- Deploy WAF rules that enforce strict Origin and Referer header validation for state-changing requests to Oracle E-Business Suite.
- Train users to log out of Oracle E-Business Suite before browsing other sites and to avoid clicking untrusted links while authenticated.
- Segment administrative browsers by using dedicated browser profiles or workstations for Oracle E-Business Suite access.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
