CVE-2026-76977: CWE-1289: Improper Validation of Unsafe Equivalence in Input in SAP_SE SAPUI5(Frame Options Allowlist)
Description
CVE-2026-76977 is a medium severity vulnerability in SAP UI5's Frame Options Allowlist. The issue arises from insufficient validation of the parent frame's origin against the configured allowlist, allowing an unauthenticated attacker to host a malicious page that can bypass framing restrictions. If an authenticated user visits the attacker's page and interacts with it, the attacker could trick the user into performing unintended actions. The impact is limited to integrity with no confidentiality or availability impact.
CVSS v3.1
Score 4.3medium
Affected software
SAP_SE
SAPUI5(Frame Options Allowlist)
pkg:github/sap_se/SAPUI5Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SAP UI5 does not properly validate the origin of the parent frame against its configured allowlist, which can be exploited by an unauthenticated attacker hosting a malicious page to bypass framing restrictions. This can lead to a scenario where an authenticated victim interacting with the malicious page is tricked into unintended actions, affecting data integrity. There is no impact on confidentiality or availability. The CVSS 3.1 score is 4.3 (medium severity) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N. Affected versions explicitly include 754, 755, 756, 757, 758, and 816.
Potential Impact
The vulnerability allows an attacker to bypass framing restrictions, potentially tricking authenticated users into performing unintended actions, which impacts the integrity of the system. There is no impact on confidentiality or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor SAP advisories for updates. Until a fix is available, consider restricting user interactions with untrusted frames or implementing additional application-level frame origin checks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-08-20T05:33:36.765Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f5c5dacd9273b49b3db89
Added to database: 09/08/2026, 00:52:45 UTC
Last enriched: 09/15/2026, 01:17:03 UTC
Last updated: 10/08/2026, 06:48:19 UTC
Views: 104
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