SAP BusinessObjects Business Intelligence…: Improper Restriction of XML External Entity Reference
CVE-2026-109798 is a critical-severity improper restriction of XML external entity reference vulnerability in SAP BusinessObjects Business Intelligence Platform (Web Intelligence) from SAP, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected SAP BusinessObjects Business Intelligence Platform (Web Intelligence) versions: ENTERPRISE 430; 2025; 2027. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.28% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of SAP BusinessObjects Business Intelligence Platform (Web Intelligence) you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | SAP BusinessObjects Business Intelligence Platform (Web Intelligence) | ENTERPRISE 430; 2025; 2027 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- LowPerformance or availability is reduced.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L. Scored by CNA (sap.com).
Official description
SAP BusinessObjects Business Intelligence Platform (Web Intelligence) does not properly restrict external entity resolution when processing OLAP connection requests. An authenticated attacker could exploit this vulnerability to access restricted resources, enabling them to read sensitive files on the server and reach internal systems that are not otherwise exposed, impacting resources beyond the vulnerable component, resulting in a high impact on confidentiality and a low impact on both integrity and availability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of XML External Entity Reference
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
How developers prevent this class of flaw
- Many XML parsers and validators can be configured to disable external entity expansion.
More Improper Restriction of XML External Entity Reference vulnerabilities (CWE-611)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Recent Improper Restriction of XML External Entity Reference vulnerabilities
- 9.3 Critical severity
- 7.7 High severity
- 9.9 Critical severity
- 7.2 High severity
- 9.1 Critical severity
- 9.9 Critical severity
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