CVE-2026-76977 SAP_SE CVE debrief

Who should care

Defenders responsible for SAP UI5 applications, security teams, and administrators should assess exposure and prioritize verification of allowlist configurations. Additionally, operators and platform administrators should review the vulnerability's impact on their systems and ensure that proper mitigations are in place. Vulnerability management teams should also be aware of the potential risks and plan accordingly.

Why it matters

CVE-2026-76977 is a medium-severity vulnerability in SAP UI5 that allows unauthenticated attackers to bypass framing restrictions, potentially leading to low impact on integrity. Defenders should prioritize verifying exposure, ensuring proper allowlist configuration, and monitoring for suspicious activity.

• Defenders must verify exposure of SAP UI5 applications to untrusted sources.
• Proper configuration of allowlists is crucial to prevent framing attacks.
• Defenders should monitor SAP UI5 applications for suspicious activity.
• Remediation priority is low to medium due to limited impact on integrity.

Technical summary

The SAP UI5 vulnerability allows an unauthenticated attacker to host a malicious page that bypasses framing restrictions. If an authenticated victim interacts with the page, the attacker can trick the victim into performing unintended actions, resulting in a low impact on integrity. This vulnerability affects SAP UI5 applications that do not sufficiently validate the parent frame's origin against the configured allowlist. Defenders should prioritize verifying exposure of SAP UI5 applications to untrusted sources and ensuring proper configuration of the allowlist.

Defensive priority

Defenders should prioritize verifying exposure of SAP UI5 applications to untrusted sources and ensuring proper configuration of the allowlist.

Recommended defensive actions

• Verify SAP UI5 applications are properly configured to restrict framing to trusted sources.
• Ensure allowlists are correctly implemented and regularly updated.
• Monitor SAP UI5 applications for suspicious activity.
• Review and update incident response plans to address potential framing attacks.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. Defenders should verify exposure of SAP UI5 applications to untrusted sources, ensure proper configuration of allowlists, and monitor for suspicious activity. The CVE Program and NVD entries provide source-provided CVE metadata and official vulnerability assessment, respectively.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.